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GM lsx 454 from gm is the complete long block and the erl454 is only for the shortblock.
which engine would you rather have?
For a naturally aspirated application I prefer an aluminum block, those LSX blocks are great but they are HEAVY.
Originally Posted by RedLs3
i know its a stupid question but is the lsx 454 and much better engine and stronger then the stock ls3?
Better? It is stronger/better for making big power and probably better for boost or nitrous yes but it's likely also less fuel efficient, it's heavier and more expensive (buying the motor, removing the old one etc.) so it being 'better' or not is really up to the individual.
I would go with the ERL block unless you're going with power close to 2,000HP. Personally I don't like the iron blocks in these cars that were designed w/ aluminum blocks.
Those ERL block are real strong and there's guys pushing over 1000HP through them all day long.
From: Supporting the Corvette Community at Abel Chevrolet in Rio Vista, CA 707-374-6317 Ext.123
St. Jude Donor '08
What is the actual dry weight diff between the 2 blocks, maybe 100 pounds? That's no more then adding a blower, intercooler, plumbing etc to the top of an aluminum engine. For comparison sake, a TVS kit must weigh at least that much.
The LSX block increased weight is no different that the total weight for a supercharger plus the aluminum block.
Anyone that is disallusioned as to the power differences, a 454 makes 500rwtq at 1000rpm and there is no waiting for boost. It doesnt lose boost on shifts lowering power. It also gets tuned to 13:1 a/f ratio and not in the 11's like boosted motors. Anyone thinking economy is better on a 9:1 compression motor on the hiway with parasitic belt loses is just dead wrong.
620HP N/A would stomp 640hp FI on an M6 car.
The LSX block is about 90lbs heavier but the rewards on that motor are worth it. I'd get that thing for my hummer in a heartbeat off warranty. You dont mess with a daily driver until you have to.
The LSX block increased weight is no different that the total weight for a supercharger plus the aluminum block.
Anyone that is disallusioned as to the power differences, a 454 makes 500rwtq at 1000rpm and there is no waiting for boost. It doesnt lose boost on shifts lowering power. It also gets tuned to 13:1 a/f ratio and not in the 11's like boosted motors. Anyone thinking economy is better on a 9:1 compression motor on the hiway with parasitic belt loses is just dead wrong.
620HP N/A would stomp 640hp FI on an M6 car.
The LSX block is about 90lbs heavier but the rewards on that motor are worth it. I'd get that thing for my hummer in a heartbeat off warranty. You dont mess with a daily driver until you have to.
hey spin what would you recommend to do if i plan to boost in the future.
would an ERL 441 built for boost be the best option since the shortblock is $5000
or the LSX 454 longblock which is $9900
What is the difference besides the slightly bigger displacement and weight??
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