Originally Posted by cherp22
I am planning on building a 555 this winter. Its going to be around 13.1 (unless I opt to go with the 14.5:1 pistons). I'll give the combo I have and then I have a couple of questions, hopefully I can get some input...
Dart 9.8 block 4.560 bore x 4.25 stroke
SRP pistons 13.1:1 compression
6.385 rod
Dart 325 Pro 1 heads, 2.30/1.88's, gasket matched only
Victor 454r intake (4150)
Prosystems 1000 cfm 4150
400 turbo trans
8" ptc converter (5500 behind 468, probably will have to adjust)
4.10 gear for now
28" slick
Car weighed 3430 race ready and will add a little weight with the dart block. Here are my questions:
1. How much will the heads limit this combo? With my weight I would rather make power lower than higher, but I would think the engine should still support over 7000rpm's with the heads
2. What camshaft would you recommend to run with this combo
3. How much power potential and et's are possible?
This is in a g body car btw....
Thanks
1. Heads will limit it I'd say 75hp over a better suited set, one thing is its a heavy car so the smaller head will help that.
2. I'd call Bullet Cams for a cam if not just a Reher Morrsion Hot Rod Series Cam will be good.
3. Honest HP 875-915 max I'd use 14.5:1 compression and toss the 4150 stuff for a good 4500 carb and use a 4500 454R.