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)
I think that maybe impossible without Nitrous or boost (you could maybe get there if your last name is Kaase). I'm sure the other experts will chime in. Sounds like a pretty tall order though.
I made in the neighborhood of 600 with a 514 with DOVE heads, a high .600" lift solid roller, and a tunnelram with dual 750's.......Of course I used every trick I could think or inside the crankcase, windage, scrapers, bushed lifters, compression ect.
Rob
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.
Circle R racing in Sheridan Illinois has a customers D0VE headed 508 making a tick over 800hp in drag racing application, so it can be done, but I agree it would be easier with D0OE R heads.
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.
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.....
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.
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.
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
BOSS429 on here built the motor. He will forget more about BBF HP than most will ever know
Hes being somewhat fecicious, but it does have a pretty large cam and spring package. Its a very well thought out combo that alot of time was put into, and it does haul the mail. Its a Q16 motor so that should give some insight into the compression.
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)
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.
My stuff has proven to be very reliable. But next we will flog the piss out of it in the next few weeks.
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