Built SVT Lightning Vs Supercharge/Nitrous 454ss pickup
08-30-2014, 08:52 PM
#41
Double the power and I bet it still runs a 12.7
08-30-2014, 08:56 PM
#42
10 Second Club
08-31-2014, 01:51 AM
#44
Staging Lane
A built BBC is stout but lets be honest: a full race 440 or 454 LSX will curb stomp a full race 454 BBC. Only way a BBC can beat a LSX is by massive cubes. And even then if you are making a pump gas friendly setup a LSX will always come out on top: extremely lighter which we all know pays huge dividends when it's front end weight, aluminum heads/block with modern combustion chambers and intake/exhaust tracks that allows 2+ more full points of compression without knocking (aluminum modern heads on a BBC will narrow that to 1 full compression point). A streetable pump gas 700 crank horsepower out of a LSX build is common: same effort out of a 502-540 cubic inch BBC nets you 650 crank horsepower MAYBE. Also don't forget, that BBC with high flow race ready heads and intake manifold is gonna foul plugs and get HORRIBLE gas mileage along with tons of maintenance issues that will keep that hood popped long into the night.
08-31-2014, 05:41 AM
#45
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A built BBC is stout but lets be honest: a full race 440 or 454 LSX will curb stomp a full race 454 BBC. Only way a BBC can beat a LSX is by massive cubes. And even then if you are making a pump gas friendly setup a LSX will always come out on top: extremely lighter which we all know pays huge dividends when it's front end weight, aluminum heads/block with modern combustion chambers and intake/exhaust tracks that allows 2+ more full points of compression without knocking (aluminum modern heads on a BBC will narrow that to 1 full compression point). A streetable pump gas 700 crank horsepower out of a LSX build is common: same effort out of a 502-540 cubic inch BBC nets you 650 crank horsepower MAYBE. Also don't forget, that BBC with high flow race ready heads and intake manifold is gonna foul plugs and get HORRIBLE gas mileage along with tons of maintenance issues that will keep that hood popped long into the night.
A buddy of mine just got his 565ci (454) back from Precision Race Engines. The motor made 800 crank HP on 93 pump. I think SCR is only 10.5:1 or something like that. Lol It's going into a street car.
As for "pump gas" LSX vs. BBC. BBC reigns supreme no doubt about it.
08-31-2014, 08:43 AM
#47
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A built BBC is stout but lets be honest: a full race 440 or 454 LSX will curb stomp a full race 454 BBC. Only way a BBC can beat a LSX is by massive cubes. And even then if you are making a pump gas friendly setup a LSX will always come out on top: extremely lighter which we all know pays huge dividends when it's front end weight, aluminum heads/block with modern combustion chambers and intake/exhaust tracks that allows 2+ more full points of compression without knocking (aluminum modern heads on a BBC will narrow that to 1 full compression point). A streetable pump gas 700 crank horsepower out of a LSX build is common: same effort out of a 502-540 cubic inch BBC nets you 650 crank horsepower MAYBE. Also don't forget, that BBC with high flow race ready heads and intake manifold is gonna foul plugs and get HORRIBLE gas mileage along with tons of maintenance issues that will keep that hood popped long into the night.
08-31-2014, 11:29 AM
#54
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your point? still doesnt change the fact that the small block is cheaper and easier to make more power. even an ls6(454) has an issue with the 400 and 350. and last time i checked, until you start actually stop ripping into the motor big blocks hate rpms where as small blocks love them.
08-31-2014, 11:36 AM
#55
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your point? still doesnt change the fact that the small block is cheaper and easier to make more power. even an ls6(454) has an issue with the 400 and 350. and last time i checked, until you start actually stop ripping into the motor big blocks hate rpms where as small blocks love them.
08-31-2014, 11:52 AM
#57
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your point? still doesnt change the fact that the small block is cheaper and easier to make more power. even an ls6(454) has an issue with the 400 and 350. and last time i checked, until you start actually stop ripping into the motor big blocks hate rpms where as small blocks love them.
.......
08-31-2014, 12:07 PM
#59
10 Second Club
years ago a friend of mine and I both had mid 70's gm trucks. mine was a stock long block smogger truck 454 with a mild cam and headers. he had a 350 with well ported camel humps, huge cam, 10:1, stall, headers intake, etc. he had 4.10's and I had 3.73's. he still couldn't beat me and I was running on farm gas!