This will go in my 71 Chevelle with TKO600 and 12 bolt with 3.42 gears and an Auburn posi. This will be a street car, might go to the track once or twice a year. Looking to get big torque numbers down low thru midrange.
Looking for 400hp/450tq range motor(is this realistic?)
Looking for suggestions on what I need also feel free to let me know if I need to change anything I already have. I have always built small blocks and this is my first big block build so your help is greatly appreciated.
What I have:
1990 truck 454 casting # 10069286 4 bolt stock bore will be bored .030 over
stock crank
stock rods
flat top hypers
oval closed chamber heads casting #3904290 101cc 2.06I/1.72E
Demon 750 vac secondary
Performer RPM intake
comp headers 2" primaries 3.5 collector
3" exhaust with x pipe and dual flowmaster 40s
What I need I need help with:
camshaft? Looking at lunati 60202lk 1400-5700rpm range lift 530I/542E duration at .050 219/217 112 LSA, any other cam suggestions are welcome. Prefer hyd flat tappet based on budget, too much other stuff needs done.
are headers to big?
carb big enough?
any idea on compression ratio and if I would have to run high octane fuel?
I know lots of questions, Thanks for your input.
Looking for 400hp/450tq range motor(is this realistic?)
Looking for suggestions on what I need also feel free to let me know if I need to change anything I already have. I have always built small blocks and this is my first big block build so your help is greatly appreciated.
What I have:
1990 truck 454 casting # 10069286 4 bolt stock bore will be bored .030 over
stock crank
stock rods
flat top hypers
oval closed chamber heads casting #3904290 101cc 2.06I/1.72E
Demon 750 vac secondary
Performer RPM intake
comp headers 2" primaries 3.5 collector
3" exhaust with x pipe and dual flowmaster 40s
What I need I need help with:
camshaft? Looking at lunati 60202lk 1400-5700rpm range lift 530I/542E duration at .050 219/217 112 LSA, any other cam suggestions are welcome. Prefer hyd flat tappet based on budget, too much other stuff needs done.
are headers to big?
carb big enough?
any idea on compression ratio and if I would have to run high octane fuel?
I know lots of questions, Thanks for your input.