Ford Performance Super Cobra Jet Assembled Aluminum Cylinder Head Fits Big Block Ford 429/460ci engines
397-M-6049-SCJA
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Assembled Head
Ford Racing teamed up with Jon Kaase to redesign their 429 Cobra Jet cylinder heads, and the results are these Super Cobra Jet heads. They feature revised valve angles and locations to reduce cylinder wall shrouding and improve flow, along with redesigned combustion chambers to accommodate the more centrally located valves. These heads use the same valves, valve springs, retainers, and 7/16 in. stud-mounted roller rockers as the current Ford Racing 429 Cobra Jet heads, and the standard Cobra Jet intake and exhaust manifolds bolt right on. This new design offers a 25-50 HP increase over current Cobra Jet heads, depending upon displacement and camshaft.
Specifications:
Can the Edelbrock Performer RPM intake be used with these Heads?
I want to use these heads with TRW Speed Pro Forged Pistons with a single relief cut. Will they work with these pistons or do the pistons need to be recut?
Will these heads work on a stock boar 429
Can this assembled head be used with flat tappet hyd camshaft?
Are these sold specifically for left and right heads, or universal?
Are these heads cut for a 1.620 valve springs?
Will these heads fit on a 428 and what else would need to be changed?
What is the recommended head gasket for these heads? They are to be installed on a 460 HO block.
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