porting oldsmobile heads

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. In order to shop on this Web store, you must have JavaScript enabled. Stock-type steel big-block Oldsmobile valves are available through SBI and other sources and are relatively inexpensive. Comes completely assembled with roller cam springs speced out 7/16"CAN BE USED WITH NO ISSUES AND DRILLED FOR 3/8" PUSHRODS. Includes a multi-angle or radius Serdi cut valve job on both heads (seat cutting only). JavaScript is disabled. These heads solve all of those problems, Wise explains. Bernard Mondello, Joes son, grew up surrounded by the richest heritage in drag racing history. BEST OF ALL RAISED AND RELOCATED, SYMMETRICAL PORTS. Unfortunately, they are not available anymore. The store will not work correctly in the case when cookies are disabled. Unsung Hero by Scott Parkhurst, Popular Hot Rodding The 403 Olds may be the most overlooked performance engine ever. 2023 Power Automedia. Today, Chevrolet performance cylinder heads still utilize the identical combustion chamber, which Joe designed in the early 1960s known as the Posi-Flow chamber. EFVU(eufv7GWgw8HXhx)9IYiy*:JZjz m !1AQa"q2#BRbr3$4CS%cs5DT 0000001469 00000 n Performance ranges from an emissions-legal street-oriented bolt-on for daily drivers to a full-on race casting for serious competition. 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. The famed Mondello-Matsubara Blown Fuel Altered won two National Events in the 1960s. With the racing we do, we spin the engine up to 9.500 rpm or more, and we needed a cylinder head that would handle the piston speed. Get big-block heads, mill the deck surface so you can get the combustion chamber volume, and presto! Now, Wise Performance Engineering has developed the Oldsmobile Z cylinder head, based on hundreds of hours of research and development time. Operating within the idle-5500 rpm range - they fit the bill perfectly. ROLLER CAMSHAFT ..Call for pricing, SOLID ROLLER CAMSHAFT Call for pricing, CNC PORTED CYLINDER HEADSCall for pricing. It looks like you could go huge on the exhaust ports, but I know that sometimes going too big actually kills velocity. All of the great drag race cars ran with Mondello. Includes full porting and polishing of the inside of the intake manifold. We'll send you the most interesting Dragzine articles, news, car features, and videos every week. First of all, I'm just a homegamer in the Oldsmobile cylinder head department. Includes port matching and blending of the plenum and its dividers. Stage I BP: $300 Our "street" port job - a minimum recommended porting stage. Joes first car was a 40 Ford coupe with a 303 c.i.d. Dont ever let anyone tell you that you dont need a receiver groove in these copper head gasket/O-ring applications. 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. All of the small-block combustion chambers have roughly the same shape, but vary in volume. cool, thanks for sharing. A good option for ported heads. For those racers looking for a head with 500+hp potential, this is it! Item is a matched pair of 1967-68-69 OldsmobileC code cylinder heads that have been stripped and prepped for a performance rebuild. 75 mm throttle body, A 90 mm mass, 24 or 30 lb injectors and a chip and tune after. Seen here are two angles of the intake port. The same goes for the intake and exhaust ports on the muscle-car-era castings. 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. dual-quad big block Chevrolet. 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. Virtually every set of Procomps I sell/install get 2.125 intakes because the bowls are more conducive to that valve size. WebEdelbrock RPM Olds 455 Head Porting HeavyOlds 268 subscribers 642K views 15 years ago The scariest thing I ever did was port a set of new Edelbrock aluminum cylinder heads. O-rings can be installed in the head or the block, but preferably in the cylinder head. Just bolt on a set of complete heads for instant power - cos we've done all the hard work for you! Copper head gaskets can be purchased from numerous suppliers such as Clark, Hussey, SCE, and Flatout Gaskets and should be ordered with a gasket-bore size .050-inch larger than your engine bore. 1 ROCKET 0000000833 00000 n Installing these larger valves should be standard procedure, even for stock rebuilds. Oldsmobile heads are available with OEM sparkplug location. BTR stocks the commonly used thicknesses, and they are available in .027-, .030-, .036-, .040-, .045-, .051-, .060-, .065-, .071-, .074-, and .120-inch sizes. These heads are capable of over 400 cfm airflow. 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. WebAll Speedmaster 18deg. But opting out of some of these cookies may have an effect on your browsing experience. WebEdelbrock Oldsmobile Heads. Speedmaster cylinder heads feature as-cast ports in both alloy and cast iron and are designed for entry-level street/strip performance applications operating in the idle-to-6500 rpm range. Some manifolds may not have enough material and runner volume to match, but the Edelbrock Victor (PN 2812) does. When it comes to yellow tomatoes, Carolina Gold is a popular determinate variety. 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. Edelbrock recommends a Champion plug in their info for the head. Includes full Valve covers, fuel-injection-capable 4bbl-style intake manifolds, and other parts to install the cylinder heads are also available. 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. If you want a free port job on your small-block Olds heads, put the die grinder down. Includes bowl port. THESE HEADS WILL HAVE 2.190 INTAKE AND 1.72 EXHAUST VALVES. Combustion Chamber, Exhaust and Intake Ports all fully CNC machined for better flow. The super-thick deck is not an illusion Wise says these are 1.125-inch thick. CNC combustion chambers offer superior control over flame travel and quench area. 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. 0000369626 00000 n Of all the factory iron heads I have played with, I have found the A heads to be the best in stock form. The after numbers look close to what everyone says these head flow, interesting. Flow testing: $100 Flow testing of one intake and exhaust - performed on our custom built bench at 28" of depression with flow sheet provided. WebOldsmobile Cylinder Head Porting larger image We can machine, install upgraded components and port your Oldsmobile cylinder heads. The famous C head is well known for being the best factory iron cylinder head to use, but I have not found that to be the case. Competition-ready heads feature fully CNC machined combustion chambers and blended seats for increased air flow and well as revised exhaust valve angles for larger intake valves. And a very good head porter. 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. The big-block and diesel engine blocks also used a 3.000-inch main bearing diameter over the small-blocks main bearing dimension of 2.500-inch. Includes full porting and polishing of the inside of the intake manifold. CNC ported w/ 5 angle valve job. Web440 Olds Stroker Small Block Photos by Chris Hemer, Popular Hot Rodding The strong arm solution for weak-kneed 350s. The Stage 1 head is fully CNC-machined and is delivered with 5/16-inch bronze valve guides and iron seats. Wow the before the bowl work they are far from impressive. 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. Includes port match. SpeedmasterTM kits bring together everything you need. They prefer warmer temperatures and drier, Take Action Now: How You Can Fight Climate Change and Protect Our Environment, The Effects of Climate Change on Our Environment You do. Stage III: See below for pricing Complements any head porting for maximum horsepower. Rated 5.00 out of 5 $ Add to cart $ 995.00 Add to cart; Home; Parts. Very happy with the power made on the dyno with the Edelbrock Carbs. Good middle of the road plug, not too expensive, high quality, regularly stocked everywhere. 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. These specially designed heads are unported and feature extra-thick decks, under-sized intake and exhaust runners, and increased wall thickness that allow professional head porters and engine builders to perform custom CNC porting and other modifications. When they do fail in these applications, it usually ruins something like the block or the cylinder head. Research, compare, and save listings, or contact sellers directly from 160 Oldsmobile models in Rahway, NJ. At my door for 2400$ Canukistan dollars (1830 us). so, these are Pro Comps that got cleaned up a little? There are a number of head gaskets for the Oldsmobile engine. As well as port matching. NO WATER BY PORTS SO PORTING IS INFINITE. Sweet, Growing Peppers in Your Garden: Tips, Hardening Off and Soil Mix, Growing peppers is a great way to spice up your garden. One such individual is Brad Wise of Wise Performance Engineering. The deck thickness and stiffness required on the cylinder heads has to be determined according to the amount of horsepower the engine can produce. When you remove a cylinder head torqued up with a copper head gasket, you literally have to pry the gasket off the block because the soft copper embeds into the receiver grooves, which is what seals the combustion pressure. Stage III: See below for pricing Complements any head porting for maximum horsepower. USES OLDSMOBILE HARLAND SHARP ROCKERS OR COMPARABLE. Stage I: $300 Complements any of the above mentioned port jobs. The cylinder head works by allowing the air-fuel mixture to enter one valve and the exhaust gas to exit the other. We also do 1,2,3,4,6,10, and 12 cylinder engine head work. We use cookies to provide you with the best possible user experience. EACH SET OF HEADS IS BUILT TO YOUR SPECIFIC ENGINE. Copyright 1995-2023 Rocket Racing & Performance LLC. Speedmaster crate engines have become a huge success all over the world. If you get a set of roller rockers that don't require any machine work to install, you can put them on 0000000607 00000 n 2023 CarTechBooks. Wise based his Olds cylinder head development on the port shape of the venerable Chevrolet SB2 cylinder head design. Those Shelby Ford Cobras, 1st, 2nd, 3rd & 4th places respectively. Heads Shop is located at 4101 Bergen Turnpike in North Bergen, New Jersey 07047. THIS IS JUST A SAMPLING OF THE MANY FEATURES THESE HEADS HAVE. We will safeguard your e-mail and only send content you request. From extreme weather events such as droughts, floods, and wildfires to the melting of polar ice caps and rising sea levels, it's clear that our planet is in trouble. Once cookies are enabled please refresh the current page. 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. Known for giving you the optimal airflow combination for maximum engine performance. These Hurst Olds D heads are some of the rarest Olds heads. Joe Mondello designed open chamber big and small block Chevy cylinder heads and pistons long before Chevy did. Contact us for your application and pricing. If you bolt a set of big-block heads on a small-block, its like bolting on a ported head. v*UWb]v*U??~Z }e{XWU=_PF*+m (.__Z =j:S{O*>})Hu{Gl;bwyl8W8? Yes, they have a ton of potential but need some work to get there obviously. 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. All rights reserved. All rights reserved. Those were the days when you started a race with a flag man starter, not a Christmas tree. Contact us for your application and pricing. The first step is to understand the causes of climate change and how we can reduce our impact on the environment. Bulletproof Big Blocks by Chris Hemer, Popular Hot Rodding If your 455 Olds needs a booster shot, then its time to call The Doctor. My question is how far can you port these heads? The most desirable small-block Olds cylinder heads are the number-6 and number-7 castings. This car is called the Hefty HEMI and will compete in the NMCA - Nostalgia Super Stock class! Copper head gaskets get a bad rap from people, mostly because the O-ring job was performed incorrectly, allowing coolant into the engine. Some of the key features include: Speedmaster CNC ported cylinder heads are machined on dedicated 4-axis and 5-axis CNC machining centers to ensure accuracy and cost effectiveness. The 1972 W-30 H heads are probably the rarest; the 1970 W-30 F heads are not quite as rare. These heads were a good bang for the buck with room to grow vs the cam that I am running. For instructions on how to enable cookies, please see the help section of your browser. 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