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1000 plus

4K views 4 replies 4 participants last post by  FourEyed Freak 
#1 ·
what would be the beter head to make 1000 plus to the tire motor is going to be a 545 solid roller with a 4.390 bore 4.500 stroke 6.800 rod with 300 nos fogger stock block witch head better for this deal p51 or the a460 single carb cast intake
 
#3 ·
As said above, you aren't going to make 1000 "all motor" Hp to the tire with a stock block 545, with either head. If you mean 700 Hp + 300 nitrous, then it will be much easier. Count on 18% to 20% horsepower loss due to the parasitic drag.

That being said, the A-460 head is and will always be, the better racing head verses any of the OEM style CJ heads such as the P-51. The ports are much higher up off of the deck with the A-460 style heads.
 
#5 ·
700 horsepower is attainable with both if that's what your looking for before spray. A 557 would help because of the bigger bore, but the difference would be marginal. As has been said the A460 head has more potential if and when you decide to upgrade the block and supporting items.
 
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