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800 hp 460 for pulling truck.

17K views 30 replies 14 participants last post by  yellowhorse7 
#1 ·
I need some advice from the experts. I had a 460 bored .060 over flat top pistons on stock bottom with D0VE-C heads fully ported and polished 2.25 intake 1.76 exhaust. But the bottom end let go on us this past weekend. I want to build a motor with 800hp with these heads. I just need to know if anyone has a dyno proven combo for a truck pulling engine that would work for me or at least some advice. (I must use cast production heads)

Thanks in advance.:)
 
#6 ·
800 lb/ft of torque ... probably yes, with a really big engine;
getting 800 horsepower using D0VE's with ANY size engine will be a real difficult task.

As Bret said, find a pair of D0OE-R heads...
 
#17 ·
Is it worth welding on top of the intake ports (under the valve cover) to then allow more porting up there to get more runner volume and a better angle at the back of the valve? I know it'd be some work to clean the castings, properly heat and then weld the extra material, and then port them out, but for what CJ heads cost I think it may be feasible.
 
#19 ·
"Is it worth" starts your question so, it depends upon your consideration of "worth".

IF you MUST use that head casting then probably but, IF you can use a better casting to start with, then no.
 
#20 ·
The 508" that FourEyed speaks of is me. Max-ported DOVE's on it. It makes just a tick over 800hp N/A. And it's a nitrous combo that I'll spray the rods out of so it has plenty left in it.

Truthfully, I did an iron-headed motor to prove a point. I'll go 8.50's on a small gun just to prove that we can. People hate to be proven wrong.....:cool:
 
#22 ·
I would like to hear more about the combo in general (comp ratio, cam, head specs) but I understand you may want to keep some details quiet. I also like the idea of running the iron heads to prove a point. Good luck in your races.

Later Mark
Well, here's what I'll tell you;)...

Big compression (big), custom cam that is very close to being a pro-stock grind, valve springs that are stiffer than a 13 year old boy and heads that weigh a lot less than the standard "ported" iron head:D

BOSS429 on here built the motor. He will forget more about BBF HP than most will ever know
 
#30 ·
I need some advice from the experts. I had a 460 bored .060 over flat top pistons on stock bottom with D0VE-C heads fully ported and polished 2.25 intake 1.76 exhaust. But the bottom end let go on us this past weekend. I want to build a motor with 800hp with these heads. I just need to know if anyone has a dyno proven combo for a truck pulling engine that would work for me or at least some advice. (I must use cast production heads)

Thanks in advance.:)
I have always been of the mind set that nothing is impossible. If you truly desire to achieve 800 hp with a set of DOVEs, then you can do it.

The real question then becomes can you afford it, and maintain it. In the end, you may find it cheaper in the long run to run a set of CJ heads. Remember also, there is a lot more than just reaching a number, it has to finish every race, every time.

;)

Dave
 
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