WebMar 15, 2024 · Best choice for 460 Aluminum Cobra Jet Heads I'm building a 520 stroker and planning on adding a GMC blower - Can't find a blower manifold for stock port heads … WebOct 14, 2024 · The 429/460 cylinder head flows generously right out of the box and, with good professional head porting, it makes a lot of power. What the 385 Series big block …
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WebDec 22, 2008 · They will make more power but you need to turn your motor hard like 5000 rpm and up to 8000rpm stuff to really take advantage of these heads. Low end their a little sluggish. Also when working the ports you usually deport the heads on btm of port with epoxy with smaller cubic inch motor like a 460. WebJun 1, 2002 · Even though the SCJ heads are really designed for big cams and high rpm, they still kicked ass on this relatively mild engine, gaining 46 hp and nearly 35 lb-ft of torque over the iron heads.... incomeshield 10 mva
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WebAug 18, 2015 · After installation of the heads with fresh Fel Pro head gaskets and ARP head bolts, the 460 was run once again on the engine dyno. Equipped with the mildy … WebSep 5, 2004 · From what I can tell the Cobra jet style heads flow a little better in the exhaust side and that's it. There is only a $100 difference between the two per head, but if it's not necessary I'd rather save my two hundred bucks . Second question is they say the springs that come on the heads are good enough for .700" lift cams. WebFeb 7, 2010 · 561 Posts. #4 · Feb 7, 2010. Cobra Jet Heads. c.evans said: No, no. You can not run any size roller you want. Both valves have a cant angle and if they (the heads) are from serial # 2000 through 5000, then they clip each other with big roller cams. Guys, this is fairly old news, check the archieves, but look for the serial numbers, stamped on ... incheon nonhyeon high school