2009年8月19日 · My set, with a stage 2 port, now flow 264 cfm at .500" lift, a touch better than stock edelbrock heads. Plus they already have hardened seats. They can be opened up to 2.02" intake valves pretty easily as well.

Yella Terra’s ABH 308-3 heads alloy casting construction offer a 50% weight reduction over factory cast iron heads. Machined and ready to accept Yella Terra platinum race rockers or other stud rockers on 7/16″ studs. Yella Terra’s ABH 5000-9 design works with EFI systems to bring strength, power, and performance.

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2010年6月10日 · MP has said there template ported small valve head has the abilty to make up to 100 HP over unported heads. Of course, at this level, there pushing the head/engine combo hard. they are IMO the best LA head you can use. The earlier heads have a decent intake port but the exh sucks. The 308s use the exh port the Magnum heads were developed from.

2023年1月26日 · But not too far off from the going rate for crack free 308 heads. Go with the Aero Heads at Indy Cylinder Head. New stainless steel 2.02 intakes 1.60 ex, new valve guides, new valve springs for 509 lift $600. And they should be like $50 off at the Indy cylinder head swap meet at the first of March.

Holden V8 304 Performance cylinder heads for sale. They are in stock with best prices & free shipping. See the Total performance range today for Pavtek, Edelbrock & COME Racing & Yella Terra Cylinder heads.

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500HP plus PAVTEK Holden 308 304 5.0L 355 Cast Iron VN EFI CNC Cylinder Heads for sale. These competition CNC ported & reconditioned Holden 304 Heads suits Holden VN Commodore 5.0L & 355 Stroker engines. Sold as a pair and are exchange required. Reconditioned and machined for screw in studs.

Aussie manufactured Higgins Holden cast alloy CNC ported heads. Holden 308 castings; CNC ported; CNC valve seats; Our ports are designed and developed by Darin Morgan at Reher-Morrison Racing Engines.

early 253-308 pre-injection hi-port alloy heads P/No. ABH 308-3 (BARE) The ultimate basis for power generation on pre-injection Holden V8 engines using “Pre-EFI” style intake manifolds and exhaust systems.