Engine Build Question
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Intermediate
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From: San Clemente California
Engine Build Question
I'm not much of a numbers guy... but maybe some of you out there are...
Roughly how much horsepower would a LS6 347 Stroker make with
243 Heads
.625 beehive race springs
7.450 pushrods
230-236 / 591 - 601 / 115 Comp cam
at 11:1 ??
Roughly how much horsepower would a LS6 347 Stroker make with
243 Heads
.625 beehive race springs
7.450 pushrods
230-236 / 591 - 601 / 115 Comp cam
at 11:1 ??
Last edited by deniedkthx; Oct 8, 2012 at 05:38 AM.
Melting Slicks
Joined: Jun 2012
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From: Oceanside California
Someone on here just stated that they made 440whp with a slightly weaker cam (228/230 ish) and stock displacement. With ported 243 heads and your specs, my guess would be around 440-450whp.
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I strongly recommend getting a FAST 92 or 102.. That will make a big difference. I have similar mods on my 02 Z with a home ported fast 90 and I easily achieved 450 RWHP
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From: San Clemente California
The guy said it may be a 427?? But I have no way of telling or... can anyone help me out?
Aside from ripping the block apart... any other ways to tell what the bore and stroke is? like piston size?
Last edited by deniedkthx; Oct 8, 2012 at 01:34 PM.
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From: San Clemente California
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Melting Slicks
Joined: Jun 2012
Posts: 3,163
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From: Oceanside California
Thread Starter
Intermediate
Joined: Jan 2012
Posts: 32
Likes: 0
From: San Clemente California
Thread Starter
Intermediate
Joined: Jan 2012
Posts: 32
Likes: 0
From: San Clemente California
Melting Slicks
Joined: Jun 2012
Posts: 3,163
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From: Oceanside California
Many, many people put 243 heads on as a modification. So it does not necessarily make it an LS6. If you had a Z06 it would be a no brainer, but most likely it is a stroked LS1 with 243 heads.
So it has already been dynoed at 600? I dont get what the question is then...
So it has already been dynoed at 600? I dont get what the question is then...
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dyno'd at 600, my question what kind of bore and stroke done to an LS6 would reach this?? cause no way is it still a 346
Melting Slicks
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From: Oceanside California
Now did the car come with a dyno sheet or where you told these power numbers? A stroked and cammed engine with your specs is usually around 450whp. I must say that I do not believe it can be anywhere near 600 without nitrous or forced induction.
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
You were either lied to, they made a mistake quoting the HP or you have a VERY UNIQUE/EXPENSIVE and RARE engine.
You normaly only see 600+ HP thru Forced Induction.
You normaly only see 600+ HP thru Forced Induction.
Melting Slicks
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From: Oceanside California
Thread Starter
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From: San Clemente California
No it is not a 346. It can be considered stroked with a different crank to make it a 402 or possibly larger. No bore modifications are needed. I don't know what bore it would have to be to make that power. There are many factors like the cam, compression ratio, and intake/ exhaust components. Every engine is different and some put out surprising numbers and others not so much.
Now did the car come with a dyno sheet or where you told these power numbers? A stroked and cammed engine with your specs is usually around 450whp. I must say that I do not believe it can be anywhere near 600 without nitrous or forced induction.
Now did the car come with a dyno sheet or where you told these power numbers? A stroked and cammed engine with your specs is usually around 450whp. I must say that I do not believe it can be anywhere near 600 without nitrous or forced induction.
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