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What about the VVT blocks? How beefy are they? How much power can they take in stock form? Will that Eagle oil pump interchange with the Appache oil pump? Is there a difference between the timing sets? How much cam can the stock eagle springs take?



From what I've seen, the 6.4 block looks to be the beefiest of them all. The bottom of the cylinder walls are casted the same as the World aluiminum block. Basically what you get is a partial filled factory block, however I'm not to happy with the looks of the narrrow 6.4 timing chain. I think forum member STEFF has an answer to this as well as member CHAPPER who has the answer with his custom spring locator's when using the Manley 5.7/6.1 NexTek Series replacement springs on 6.1 G3 heads.

Last edited by hemidup; 01/23/13 12:50 AM.