Mark Stephens High Performance. All 1979 and later Type 4 engines ('79 Bus and '80-82 Aircooled Vanagon) have a square exhaust port. The 040 Super Street head is a performance replacement cylinder head with 37.5mm stainless intake valves and 32mm stainless exhaust valves. Note: VW redesigned the exhaust port on the cylinder head in the 1979 model year. It's safe to say that we are the world leader in VW Type 4 cylinder head development. Rod Penrose Racing specialises in High Performance VW engines, parts and accessories for VW Beetle, Kombi, Type 1, Type 2, Type 3, Type 4 and drag racing cars. Heads are assembled with Scat or Bug Pack Dual Spring kits) These heads have 85.5 bore. Len Hoffman of Hoffman Automotive Machine is our head … With nearly twenty years of intensive R&D we have something for every T4 application. The Type 4 cylinder head is misunderstood by most, butchered by others and perfected by Aircooled Technology in conjunction with Hoffman Automotive Machine! We provide the classic VW hobby with tech tips, project advice, and quality parts for VW Restoration, VW Performance and Custom Aircooled VW projects. See details 2270 Porsche 914 Performance Engine Kit #40066 Forget that six cylinder conversion for your 914! Type 4 Store Cylinder Heads for VW Type 2/4 and Porsche 912E/914. Stage 1 are 40 x 35.5 valves, long reach plugs, dual springs w/chromoly retainers, hand ported on intake and … Exhaust Valve, 30 x 9 x 112mm, 1975-79 FI Type 1 (1600), 043-109-611A Cylinder Heads. Also available but takes a few days to build are Stage 1 & Stage 2 Heads. Stainless Steel Exhaust Valve, Type 4 Engine, 117mm Length, Each fit the VW Type 4 and Porsche 914 engines. These heads have been ported and polished for … Vastly different in both appearance and design to the air-cooled Type 1 unit which we blogged about here, it still impresses today – not least for its silky power delivery.Here’s a short explanation of its main features… Type 4 engines built through 1978 had heads with a circular (oval) exhaust port. The quickest and easiest way to distinguish a 914/912E 2.0 head is by the three intake manifold studs; all other Type 4 heads had 4 … New and used engine parts and engine kits. MOFOCO boasts the only completely MADE IN USA VW Aircooled Cylinder Heads. Nothing is more important to the Type IV engine than a properly prepared set of cylinder heads. Over 30 years experience; First to import and machine used Type 4/914 engines from Germany (1976) First to introduce many necessary improvements to T4/914 engine Sold per each. The Type 4 engine broke new ground and was VW’s most technically advanced powerplant to date when it made its debut in 1968. Keep that car lighter by upgrading your original 4 cylinder engine to one of our MassIVe 2270cc packages with an engine kit from The Type 4 Store. At HAM we blend quality… All Type 4 Store cylinder heads are the culmination of decades of research and development at Aircooled Technology and are based off 100% new castings. This cylinder head features a unique spark plug location, the largest valve combination (42mm intake, 36mm exhaust), and a unique combustion chamber shape. From our stock 2.0 transporter replacement Blueprint Specials and wildly popular Camper Specials to our fully CNC machined LE-200's. These are the best valves we have found, an amazing value for the money! Home of Australia's Fastest VW… Type 4/914 Specialist. Ported and polished for … Mark Stephens High Performance Type 4 engines built through 1978 had with... Is misunderstood by most, butchered by others and perfected by Aircooled Technology in conjunction Hoffman. 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