Better combo, need advice ASAP
#1
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Hey guys I have 2 setup's and I am wondering what the better way to go is.
Heads are stage 2.0 6.0 heads brand new from Absolute speed.
Flow 310@550 314@580 and 315@600.
Cam shaft is a 234/238 duration 598/605 on a 114LSA.
LT headers and true duals with all the bolton's.
Here is my option, BOTH motor's have similar parts with everything being aftermarket except the crankshaft. I am spraying 200-250 shot on nitrous and I can either build a 370 cubic inch (6.0 L block bored) motor which will be better with the 6.0 heads I have. There is a weight difference vs the LS1 block.
Or a 346 cubic inch motor again all forged except for the crank.
The compression will be 11:1 using the 370 cubic inch motor and 12.7:1 (+12cc dome pistons) in the 346.
So basicially the only difference being the weight, compression, and cubic inches.
I feel the 370's extra power will make up the weight difference and the block is stronger for the nitrous use.
I also feel the 12.7:1 compression is just too high for a everyday driver.
I will be using the heads and cam package above.
Any help will be awsome.
Heads are stage 2.0 6.0 heads brand new from Absolute speed.
Flow 310@550 314@580 and 315@600.
Cam shaft is a 234/238 duration 598/605 on a 114LSA.
LT headers and true duals with all the bolton's.
Here is my option, BOTH motor's have similar parts with everything being aftermarket except the crankshaft. I am spraying 200-250 shot on nitrous and I can either build a 370 cubic inch (6.0 L block bored) motor which will be better with the 6.0 heads I have. There is a weight difference vs the LS1 block.
Or a 346 cubic inch motor again all forged except for the crank.
The compression will be 11:1 using the 370 cubic inch motor and 12.7:1 (+12cc dome pistons) in the 346.
So basicially the only difference being the weight, compression, and cubic inches.
I feel the 370's extra power will make up the weight difference and the block is stronger for the nitrous use.
I also feel the 12.7:1 compression is just too high for a everyday driver.
I will be using the heads and cam package above.
Any help will be awsome.
#4
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Originally Posted by jrp
i'd run a 111 or 110 lsa w/ that cam if you go the 346 route unless you'll be running race gas. have you calculated what your DCR would come out too?
whats the application, seems like your trying to shoehorn a racecar setup into a daily driver paradigm.
whats the application, seems like your trying to shoehorn a racecar setup into a daily driver paradigm.
Have not calculated the DCR, I am acturally just giving the compression a good guess. I am proballt .1-.3 off give or take.
I am only asking about these 2 combo's because these are the 2 combo's I can pick up at this time in the price range I have to spend.
I cant control the compression because both motor's are already built and I already have the heads.