They must line up perfectly to each other. Using only high-grade components, our team of machinists and engineers with 40+ years experience get the job done with quick turnaround time and proven precision and assured quality control. Filling the exhaust heat crossovers can never hurt. Not intended for street application. so, these are Pro Comps that got cleaned up a little? THIS IS JUST A SAMPLING OF THE MANY FEATURES THESE HEADS HAVE. WebThe oval port head has 110-cc chambers, and the rectangular port head comes with 118-cc chambers. The most common modification done to these small-block Olds castings is to install the 2.000-inch-diameter intake and 1.625-inch- exhaust valves from the big-block. I have seen many heads that have been milled unevenly, which throws everything off. Unfortunately, they are not available anymore. SpeedmasterTM cylinder heads offer improved power throughout the rpm range for greater throttle response and top-end horsepower. These guys have alot of experience and helpful and cheap, Nirmal is a good guy with alit of experience, Worst experience nasty attitude doesn't take responsibility he has had my motor for 8 months for 30 over bore hot tank and flycutting pistons had to return motor 3 times found metal shavings in motor motor was dirty and stay away from nirmal stay away. Speedmaster has taken the guesswork out of top-end component selection by actually placing the top end components together in complete kits. Build your own custom newsletter with the content you love from Dragzine, directly to your inbox, absolutely FREE! Bulletproof Big Blocks by Chris Hemer, Popular Hot Rodding If your 455 Olds needs a booster shot, then its time to call The Doctor. SPRINGS,LOCKS, RETAINERS, STUDS,GUIDEPLATES, AND VALVES. For the more serious street application, the SuperStreet Series boasts high quality intake and exhaust valves and valve springs suited for daily drivers and tough street machines. Made from the finest material, with total in-house manufacturing in our ISO-9001 certified California-based facilities. They require that the decks be flat and smooth. To learn more, view our Good middle of the road plug, not too expensive, high quality, regularly stocked everywhere. This modification is easily performed during the valve-job operation and turns an old, rusty, worn-out cylinder head with pitted seats into a set that is in brand-new condition. 0000000853 00000 n Head Porting At Home by Marlan Davis, Car Craft Professionally prep your own heads with Mondellos home porting kit. Developed by William Estler in the 1940s, this tomato is known for its large size, sweet flavor, and disease resistance. Porting at Home by Michael Lufty, All Chevy Head Wizard Joe Mondello offers tricks of the trade. Includes port match. Performance cylinder heads enhance the airflow into your engine, giving you improved power and torque. Dont stress out over the finish; just leave no rough cuts. THIS PACKAGE INCLUDES: 1 PAIR OF ROCKET RACING CYLINDER HEADS. Our Cylinder Heads are built and assembled in-house at our facility in California. Rocker arms and other supplemental parts increase the price as well. Includes full porting and polishing of the inside of the intake manifold. This website uses cookies to improve your experience while you navigate through the website. We then basically put those dimensions into our cylinder head, and then worked around the port and chamber dimensions to make everything fit within in Oldsmobile platform, he says. Always remember, at Mondellos you get what you pay for: Horsepower, not promises. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. WebPorting an Oldsmobile Small Block Head 2,618 views Sep 9, 2021 57 Dislike Share Junk Dump 352 subscribers Watch me port an Oldsmobile small block head. Includes cutting a back angle on the valves at a specific degree. Copper head gaskets get a bad rap from people, mostly because the O-ring job was performed incorrectly, allowing coolant into the engine. When they do fail in these applications, it usually ruins something like the block or the cylinder head. WebStage II: $500 Suggested porting for most intakes. We wanted to keep the design as close to OEM specs as possible so that guys could bolt these on using existing components, but have a chamber design thats modern. 1 ROCKET Starting with the right soil and conditions can make all the difference when it comes to germination and transplanting of pepper seedlings. Just bolt on a set of complete heads for instant power - cos we've done all the hard work for you! All Steel Roller-Tip Adjustable Rocker Arm Systems, All Steel Roller-Tip Adjustable Rocker Arm Systems (Cast Iron Applications), Non-Roller Adjustable Rocker Systems (Cast Iron Applications). WebPro-Port Raw heads are semi-machined with finished accessory, intake and exhaust flange bosses. Necessary cookies are absolutely essential for the website to function properly. But opting out of some of these cookies may have an effect on your browsing experience. When milling your cylinder heads, make sure that the machine shop machines the deck surface parallel to the valve-cover rail. Head Build Kits include the following: Intake Valves, Exhaust Valves, Valve Spring Retainers, Valve Locks, Valve Springs, Valve Stem Seals, and Valve Spring Locators. I wouldnt say these gaskets are the best choice for aluminum heads. We also use third-party cookies that help us analyze and understand how you use this website. WebOLDSMOBILE ALUMINUM HEADS 330,350,403,400,425,455. These cylinder heads can certainly be made better with some work, but it is generally best to use the older castings. The oldest castings (used on the 1965 400 to 425-ci engines) have the letter A, and the latest big-block production castings have the letter J. The series ended there. In years past, I measured intake runner volume in a bunch of different-lettered iron cylinder heads, and found that the E castings were second in line to the J heads in small runner size. The traditional Oldsmobile V-8 is unique, in that both small- and big-block versions can share the same cylinder head castings. Edelbrocks Pro-Port Raw Cylinder Heads are purpose-engineered castings for custom racing engines. The after numbers look close to what everyone says these head flow, interesting. Stage I: $300 Complements any of the above mentioned port jobs. Get Heads Shop reviews, rating, hours, phone number, directions and more. Another method of blocking the exhaust crossover is to machine a pocket on the intake side and press fit or silicone a piece of metal in there. Pricing is for traditional V-8 cylinder head pairs. 0000363215 00000 n Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are as essential for the working of basic functionalities of the website. Valve profiling and flow sheet included. CUSTOM ENGINEERED GUIDEPLATES FOR THE ABSOLUTE BEST ALIGNMENT. In my experience, it seems that the rest of the factory cast-iron cylinder heads (A through H) are close enough in runner shape and size so that it does not really matter which one you select for your high-performance Oldsmobile project, especially if you are porting them. Stage IV: $1000 Our "hot rod" port job- for nitrous and forced induction applications. Once JavaScript is enabled please refresh the current page. 455 Olds to Go by Marlan Davis, Car Craft Joe Mondello builds a 500-horse 455 thats the Torque of the town. The 1972 W-30 H heads are probably the rarest; the 1970 W-30 F heads are not quite as rare. As well as port matching. The factory Olds cylinder head uses a 6-degree valve angle in an inline arrangement, and his decision to keep the new design to where it would work for both street and race-type applications presented plenty of challenges. As the Oldmobile engine was offered in both small-block (9.330-inch deck height) and big-block (10.625-inch deck height) with no other changes to the basic architecture, the cylinder heads works on either combination without any issues. While many gardeners prefer the reliable production and compact size of determinates, others are drawn to the larger fruits and greater yields of indeterminates. 2023 CarTechBooks. ALL ROCKET RACING CYLINDER HEADS ARE BUILT PER CUSTOMER APPLICATION.PLEASE CALL TO ORDER. The same goes for the intake and exhaust ports on the muscle-car-era castings. Whether youre growing hot or sweet varieties, there are some important tips for success. Head or block O-ringing: Starting at $250, Address: 1035 Front Royal Dr. Indianapolis, IN 46227. For instructions on how to enable cookies, please see the help section of your browser. U Includes fully ported exhaust, bowl ported and port matched intake, and profiling of the combustion chambers. Pricing on the WPE Z head starts at $2,850 per pair for the Stage 1 design, with incremental prices increases as the user seeks to increase performance by choosing the Stage 2, 3 or 4 designs. Terms|Privacy, Oldsmobile Motor Cylinder Head Guide | CarTech. 0000369701 00000 n It'll pass anything except a gas station :-). By continuing to use our site, you agree to their use. This factory iron big-block A cylinder head has the largest ports I have seen. These castings are undesirable for performance use. %PDF-1.3 % They did change quite a bit in the later smog engine years. Stage V Competition: Standard valve angle, conventional style heads, Stage V Ultra-Competition: altered valve angle, competition style heads. s !1AQa"q2B#R3b$r%C4Scs5D'6Tdt& USES OLDSMOBILE HARLAND SHARP ROCKERS OR COMPARABLE. I have milled factory iron, Batten, and Edelbrock Performer RPM heads as much as .100 inch for certain applications. The ultimate setup in cylinder sealing is the copper head gasket with a stainless O-ring embedded into the cylinder head, with a corresponding receiver groove machined in the block. Mondello Performance Products, Inc. 1103 Paso Robles Street Paso Robles, California 93446, Toll Free Order Line: 877-322-4489 (Ordering with part numbers only). You might need to go hotter or colder depending on your setup, but this is roughly equivalent to a R45S. If its a 383 stroker, you can probably go with 200cc intake runners. This, Affordable Street Performance Applications, Select Performer Heads are 50-States Legal, Next-Level Street Performance Applications, High-Performance Street & Light Race Applications, Available in CNC Ported for Maximum HP/TQ, Raised Runners, Revised Chambers and Relocated Valves, Available with original Edelbrock script or block logo design, Available with raised-roof combustion chamber design for high-lift cams, Manufactured by the company that pioneered Flathead performance, The only heads designed specifically to accommodate almost any CNC port configuration, Hot Isostatic Pressing castings available for increased strength and density, Cast in the USA at Edelbrocks state-of-the-art foundry. During the early 70s, this winning father-son combination went to work at the Parker Dam 9 hour enduro, winning the Jet Boat class with an Olds 455 in 1972 and in 1975 & 1976, back to back wins with a 500 c.i.d. Most Olds folks seem to prefer theC heads for their added performance and better flow. Having a decent port in the thing to where it would flow and work forced us to raise the intake port up 1.750-inch, and then we raised the exhaust port about the same. Project Murderous Overkill by Christian Hazel, JP Magazine The Mondello Monster. When a Top Fuel car uses a method other than this to seal combustion pressure, Ill try it. The T&D shaft-rocker system was developed specifically for this cylinder head configuration. Joe Mondello has set national records and won events over the years with both cars and boats. Joes first car was a 40 Ford coupe with a 303 c.i.d. We will safeguard your e-mail and only send content you request. Exhaust. A Heads Shop is located at 4101 Bergen Turnpike, North Bergen, NJ 07047, A Heads Shop is open:Saturday: 8:00 AM - 8:00 AM Sunday: Closed Monday: 8:00 AM - 6:00 PM Tuesday: 8:00 AM - 6:00 PM Wednesday: 8:00 AM - 8:00 AM Thursday: 8:00 AM - 8:00 AM Friday: 8:00 AM - 8:00 AM. Joe Mondello and Racing are synonymous with each other. The Stage 1 head is fully CNC-machined and is delivered with 5/16-inch bronze valve guides and iron seats. A good option for ported heads. Mated with the fuel injection, it starts right up, has a nice raspy idle and great throttle response., 572 HEMI in a 64 Dodge 440 - Best Machine Racing Engines built the engine - we chose the Edelbrock heads as they were impressive castings with great finish and flow right out of the box! For the best experience on our site, be sure to turn on Javascript in your browser. There are a number of head gaskets for the Oldsmobile engine. Includes bowls and intake opening port match. Combustion Chamber, Exhaust and Intake Ports all fully CNC machined for better flow. In the 60s & 70s, this was the fastest wedge-head Chevrolet, running a 7.24 E.T. Web2- New Casting the 370 are factory ported cast from a 375X port this is a 2 new BB/C Pro Filer 385X racing heads. Estler's Mortgage Lifter tomato is one of the most popular heirloom varieties that is perfect for home gardeners. Our EFI systems provide excellent throttle response throughout the RPM range along with smooth engine operation. As well as port matching. In those days, the shops clientele read like a Whos Who of drag racing greats. Those Shelby Ford Cobras, 1st, 2nd, 3rd & 4th places respectively. The stock cylinder head and other designs on the market are capable of flowing about 320 cfm, but above that, and above .650-inch lift, they become inefficient and the airflow becomes very turbulent because of the chamber design. to grow your business. I have not found any considerable difference between the castings, with the exception of the J heads. The perfect cylinder head, designed for entry-level that results in great driveability, power and economy. Copyright 1995-2023 Rocket Racing & Performance LLC. It is also known as Radiator Charlies Mortgage Lifter, after Charles Byles (1890-1976), an auto mechanic, This website uses cookies for functionality, analytics and advertising purposes as described in our, http://www.xsrpms.com/dragnet/rides/napier/index.html. Pro Sportsman Porting Work- Call for Pricing! Stage I PM: $300 Our "street" port job - a minimum recommended porting stage. These heads were a good bang for the buck with room to grow vs the cam that I am running. Stage III: See below for pricing complements any head porting for maximum horsepower. Joes worldwide clientele bears this axiom out; using Mondello heads & engines, they have set every type of record imaginable. Now, Wise Performance Engineering has developed the Oldsmobile Z cylinder head, based on hundreds of hours of research and development time. Heads come with 5 angle valve job. We deliver reliable horsepower, torque and drivability. Fully cnc'd. Theres enough material in and around the deck to handle that kind of power, he explains. Stock-type steel big-block Oldsmobile valves are available through SBI and other sources and are relatively inexpensive. The EX port is really good. CNC combustion chambers offer superior control over flame travel and quench area. Using the experience he gained while racing in the NMCA and supporting his customers all over the world, Wise made the decision to investigate a new design that would provide some room for growth and the Z heads are the result. 0.027" cometics, should be roughly 9.6-1. So give your heads a check with a set of vernier calipers to make sure that the deck surfaces are parallel to the valve-cover rail and the same as each other. In the early 1950s, before Joe was 17 years old, he had already ported & relieved more than 50 Ford flat head blocks for the finest engine builders of that era. Milling cylinder heads for increased compression is a relatively easy operation because Oldsmobile cylinder heads are square and can easily be cut without any special fixturing. They include almost everything you need to make serious horsepower. Cookies are disabled. Very happy with the power made on the dyno with the Edelbrock Carbs. Molding two designs into one proved more challenging than expected, but hard work and solid engineering principles made the Z head a reality. Speedmaster cylinder heads offer great performance for less than it would cost to rebuild an old set. As well as port matching. Includes the bowls, port match, and profiling of the combustion chambers. We designed this stuff a few years ago, and just recently put them into production and have had some great results out of them. This happens either because the combustion seal is compromised or the head does not sit flat due to improper machining. H*-537S0 BK#s0k ] endstream endobj 27 0 obj 40 endobj 28 0 obj 361529 endobj 29 0 obj << /Type /XObject /Subtype /Image /Interpolate false /Filter /DCTDecode /Width 676 /Height 927 /BitsPerComponent 8 /ColorSpace /DeviceRGB /Length 28 0 R >> stream When were done they flow just a bit better than your best numbers and work really well. When it comes to yellow tomatoes, Carolina Gold is a popular determinate variety. The famed Mondello-Matsubara Blown Fuel Altered won two National Events in the 1960s. Some manifolds may not have enough material and runner volume to match, but the Edelbrock Victor (PN 2812) does. Speedmaster El Rayo ignition system are designed for the enthusiast that is serious about performance but needs the small cap size due to space considerations when installed. The impetus for the design came from, of all places, a look at the Chevrolet SB2-style cylinder head and its excellent-flowing, modern combustion chamber and port design. From there, Oldsmobile engineers took their shot at creating the best possible drag race head, and introduced the Oldsmobile Pro Stock head (PN 24502585). From basic "Hot-Rod" mild cylinder head porting for that street and strip machine to all out class competition machines where every horsepower matters, you're in good hands with CFM Performance! The Mondellos showed they could excel on the water as well as the dragstrip. The nice job on these C heads came by pouring in melted aluminum from the port side and then porting the bowl properly. ***CALL FOR PRICING DUE TO NATONAL SHORTAGE ON PARTS AND MATERIALS***CUSTOM - SPECIAL MACHINING or ENGINEERING BY QUOTE. THE ONLY WAY TO ACHIEVE EQUAL FLOW AND FILLS ALL CYLINDERS THE SAME WAY, WHICH YIELDS HIGHER HORSEPOWER AND HIGHER TORQUE NOT SEEN WITH OTHER HEADS. Speedmaster Cylinder Head parts have been assembled with the finest premium components to provide your engine with optimal airflow for maximum engine performance. Whats The Reason Enthusiasts Cant Get, Full Factory Tour: How Edelbrock Makes Its Cast Aluminum, High-Performance Racing Fasteners: How ARP Fasteners Are, Dobbins Clocks First 3-Second Mountain Motor Pro Stock, BirdDoc: The Six-Speed GT500 Record Holder And Its High Flying, Video: Installation Time-Lapse Of The Fresh New 3M Wrap On, Drag Pak Racer AJ Berge To Fly Iconic RAMCHARGERS Colors In 2023, 2003 Cobra Runs 8-Second Pass With Whipple, IRS, And A T-56, Moser Performance Girdles Add Rearend Strength To Your Third-Member, New Season Of Street Outlaws: Fastest in America Debuts March 13, Retro Injection: Modern Fuel Injector Tech Gives Us Room To Grow, How We Fixed The Unsightly Wheel Gap And Stance On Our 2010 Camaro, Lizzy Musi Preparing For Street Outlaws: No Prep Kings Season 6. flat head Ford along with 4 Stromberg Carbs, Edelbrock heads & manifold and of course, an Engle camshaft. Stage III: See below for pricing Complements any head porting for maximum horsepower. Traco Engineering, known at the time for extremely fast Indy cars and various sprint cars, utilized Mondello heads exclusively. as well as profiling of the combustion chambers. FLAT TAPPET OR HYD. This ensures that the valve free-drop and combustion-chamber depth is even. Yes, they have a ton of potential but need some work to get there obviously. Back in the mid to late-00s, Wise was racing his Olds in the NMCAs Pro Stock class using a set of warmed over old-school Batten cylinder heads, and he eventually came to the realization that if he wanted his combination to progress, he was going to have to do something about the induction system, as the Batten heads were, for lack of a better term, tapped out. We designed the cylinder head on paper for a max-effort race application, but what weve done is detuned it so that it works well for the street guy. Bernard Mondello, Joes son, grew up surrounded by the richest heritage in drag racing history. NO HEAD BOLT HOLES TO DEAL WITH WHEN PORTING. For those racers looking for a head with 500+hp potential, this is it! FULL RADIUS CNC 75 CC CHAMBER TO PROMOTE COMPLETE COMBUSTION, STOCK APPEARING BOLT BOSES FOR ALTERNATORS, ETC. WebWhile your engine is apart we will make suggestions on increasing horsepower and torque. EACH SET OF HEADS IS BUILT TO YOUR SPECIFIC ENGINE. Oldsmobile. Contact us for your application and pricing. So remember: J is for junk. When BTR performs this operation, the O-ring and receiver grooves are located off of the cylinder head and block dowel pins, and are machined on a Cincinnati CNC machine, which makes it easy to get perfect. Stage III: $850 Our "strip" port job - the best bang for the buck. EFVU(eufv7GWgw8HXhx)9IYiy*:JZjz m !1AQa"q2#BRbr3$4CS%cs5DT TORRANCE, CA Edelbrock has heard the requests from the Oldsmobile faithful and is responding by releasing a new and improved Performer RPM Cylinder Head for the Big Block Oldsmobile V8. For instructions on how to enable JavaScript, please see the help section of your browser. Some of our popular builds are: Edelbrock Performer RPM Olds Edelbrock Performer RPM (Stock & Super Stock) Contact Us napier 948 243 1 Jan 22, 2020 #3 nice looking ride. Much like a Pontiac engine, WPE makes use of a valley tray with their design that is installed in the lifter valley to allow for intake installation and removal without affecting the cooling system. Jiffy peat pellets are a popular choice for starting tomatoes, but they can also be used for peppers. This creates additional horsepower and torque. Oldsmobile heads are available with OEM sparkplug location. 365-385 ports. Mild porting (further blending with addition of chambers) same volume and flow jumps to about 315 cfm. CNC finish faces and bolt holes for extreme accuracy, T6 heat treated gravity die cast construction (alloy heads only), OEM accessory bolt patters for simply compatibility, Plenty of material for upgrading to larger HP applications, Machined for screw in studs and guide plates, Flame hardened valve seats for use with all fuel, High Performance Street & Light Racing Application, Lightweight Valve Springs for maximum lift, High Perofrmance Chrysler 426 & 572 HEMI engines. Includes port matching. In order to shop on this Web store, you must have cookies enabled. 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Just choose your level of performance. There is not a better method of sealing combustion than the copper head gasket with the proper O-ring and receiver grooves machined into the head and block. They already have induction hardened seats and flow almost as good as C's. Wise offers his expertise in setting up the cylinder heads per customer input and through the application of his 30-plus years of experience with the Oldsmobile platform. 1101 W. Rialto Ave. Rialto, CA 92376, USA+1 (310) 361-0020, 23 Mount Erin Rd,Blair Athol NSW 2560, Australia+61 2 9607 2299. All of the small-block combustion chambers have roughly the same shape, but vary in volume. Giant Killer by Chris Hemer, Popular Hot Rodding Bigger isnt always better and Mondellos 307 Olds proves the point. 0000001331 00000 n Authorized dealer for all Holley products, Comp, Erson, Lunati cams, Mahle and RaceTec pistons. We also do 1,2,3,4,6,10, and 12 cylinder engine head work. WebShop Oldsmobile vehicles in Rahway, NJ for sale at Cars.com. Porting at Home by Michael Lufty, All Chevy Head Wizard Joe Mondello offers tricks of the trade. Intake and 1.680 in. JFIF H H Adobe d@ Also available from WPE are exhaust flanges, valley trays, and every other part youll need for installation. By raising everything up, we now have a cylinder head that flows just as good as the SB2 or R07 or anything else out there, explains Wise. All rights reserved. You must choose UPS Ground to help ensure your order arrives before Christmas. This essentially blends all of the casting in the head for improved flow. Rated 5.00 out of 5 $ Add to cart $ 995.00 Add to cart; Home; Parts. Pro-Port Raw heads are semi-machined with finished accessory, intake and exhaust flange bosses. They worked like a charm. One such individual is Brad Wise of Wise Performance Engineering. My question is how far can you port these heads? CNC combustion chambers offer superior control over flame travel and quench area. If you bolt a set of big-block heads on a small-block, its like bolting on a ported head. WebSpeedmaster CNC ported cylinder heads are machined on dedicated 4-axis and 5-axis CNC machining centers to ensure accuracy and cost effectiveness. Tomato Varieties: From Determinate to Indeterminate & Dark to Yellow Research Your Options Before Planting! With the right seat cutters, the bowl is larger and the bowl shape allows a better transition for the air/fuel mixture to exit the valve, thus increasing available horsepower. Once cookies are enabled please refresh the current page. Hb``d``Z @KrB10Z&00040Dscc` '00 endstream endobj 35 0 obj 69 endobj 25 0 obj << /Type /Page /Parent 19 0 R /MediaBox [ 0 0 676 927 ] /Resources << /XObject << /Im0 29 0 R >> /ProcSet [ /PDF /ImageC ] >> /Contents 26 0 R /PieceInfo << /AdobePhotoshop << /LastModified (D:20120817155034-08'00')/Private << /RoundTrip 1 /ExportCrispy false /SaveTransparency false /ImageResources 30 0 R /XObject << /Im0 29 0 R >> /StandardImageFileData 31 0 R >> >> >> /LastModified (D:20120817155034-08'00') /CropBox [ 0 0 676 927 ] /Rotate 0 >> endobj 26 0 obj << /Filter /FlateDecode /Length 27 0 R >> stream Oldsmobile factory-production big-block cylinder heads are identified by a letter cast into the front lower portion of the head on the number-1 and number-8 cylinders. All rights reserved. Competition valve job: $200 A must for improved flow. NO WATER BY PORTS SO PORTING IS INFINITE. These cookies do not store any personal information. With a range of 77 cc to 46 cc, you should have a variety of compression ratios available for your simple mill job. Big race port is 300cc and hits 390 cfm. Joe celebrated over 40 years in the high performance manufacturing industry. All of the great drag race cars ran with Mondello. &6E'dtU7()euFVfvGWgw8HXhx9IYiy*:JZjz ? You do. CNC Ported heads eliminate human error and variation from port to port. You have a direct, line of sight to the valve on both the intake and exhaust side. These gaskets basically consist of two layers of embossed hardened steel and a shim of desired thickness between. The Other 350s: Oldsmobile by Marlan Davis, Car Craft The Olds 350s design specs offer ample performance potential. As with any major engineering project, it wasnt so simple as just measuring the dimensions and transferring them over to a new casting. // Ported Item is a matched pair of 1967-68-69 OldsmobileC code cylinder heads that have been stripped and prepped for a performance rebuild. Putting a higher flow head with 220cc runners on a relatively stock 350 would be going in the wrong direction. Includes bowl port. The heads are offered in four different configurations, from a basic CNC-chamber, CNC intake/exhaust port design that flows 340 cfm on the companys Superflow SF600 flowbench all the way up to the big-dog 400-plus cfm max-effort cylinder head designed for all-out racing applications.
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porting oldsmobile heads 2023