LS1 400-425 Crank HP?
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Teching In
Joined: Nov 2016
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LS1 400-425 Crank HP? I have a low mile LS1 from about a 2000 Camaro. A friend upgraded and I ended up with it after he hurt a piston with a bit too much nitrous. The rest of the engine is beautiful. Bores are clean, including the one with the damaged piston. I'll be buying one piston to replace that one.
I'd like to see about 400-425 HP at the crank. I need (some) power, longevity and fuel mileage for a daily driver.
What's good in rings? I've built many SBC/BBC but these are new to me.
I have stock heads (243 casting I believe) that i intend to use. My cam is a 965 I think, but it's been a while since I looked at it. I'm not after something rowdy, I'd rather not be noticed.
I don't have an intake yet, figuring on probably using a truck unit, nor do I have a harness and ecm, but they'll likely be recycled too. I need the Holley pan and headers to put it in my car.
So basically looking for recommendations for a cam, rings and intake to put it together well, but inexpensively if possible.
Devin
I'd like to see about 400-425 HP at the crank. I need (some) power, longevity and fuel mileage for a daily driver.
What's good in rings? I've built many SBC/BBC but these are new to me.
I have stock heads (243 casting I believe) that i intend to use. My cam is a 965 I think, but it's been a while since I looked at it. I'm not after something rowdy, I'd rather not be noticed.
I don't have an intake yet, figuring on probably using a truck unit, nor do I have a harness and ecm, but they'll likely be recycled too. I need the Holley pan and headers to put it in my car.
So basically looking for recommendations for a cam, rings and intake to put it together well, but inexpensively if possible.
Devin
243/799 type castings are not stock LS1 stuff
853/241 are what's normal. I'd mill the heads .030" run Hastings rings and a cute little 218/226 sized cam and enjoy the 360-370-ish RWHP
Great response and mileage too. Lunati dual springs are a nice kit to get
853/241 are what's normal. I'd mill the heads .030" run Hastings rings and a cute little 218/226 sized cam and enjoy the 360-370-ish RWHP
Great response and mileage too. Lunati dual springs are a nice kit to get
TECH Senior Member
Joined: Jun 2016
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From: Central Cal.
while its true stock camaros were rated at 305 / 320 that was a conservative rating probably for insurance reasons. our cars stock dynoed 300 rwhp. factor in 18-20% drivetrain loss and your around 380 crank hp stock.
If you pull an LS1, throw headers on it, tune it, and run it on an engine dyno, it usually sees 420HP at the crank.
And that's usually good for 335-345rwhp or so, which should translate close to 420HP.
And that's usually good for 335-345rwhp or so, which should translate close to 420HP.
If you have the space to fit it, TBSS intake with 243 heads. Throw on some headers and she'll make the power. Stock replacement rings will work fine for what you're asking. Gapless ring MIGHT reduce oil consumption, I'm not too familiar with them.
Not sure what you mean by 965 cam... since you're tearing it down anyways might as well replace cam bearings, get hardened pushrods, and toss in whatever shelf cam is on sale.
Not sure what you mean by 965 cam... since you're tearing it down anyways might as well replace cam bearings, get hardened pushrods, and toss in whatever shelf cam is on sale.
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From: Ohio
Gross HP numbers were used to measure HP in the 60s, which is why before 1971, some cars were rated at huge HP numbers.
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Verdad Gallardo TECH Senior Member
Joined: Jun 2016
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From: Central Cal.
The LS engines came out in the 90's so net was all we heard by that time. You never saw gross numbers that late in the game. And since the subject of discussion here is an engine in a car, net applies. Not trying to start an argument, just keeping us all on the same page.