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Forging an LS1

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Old May 8, 2008 | 10:50 AM
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Default Forging an LS1

This year my performance shop (Canadian Performance ) is upgrade my car to a forged 402 which leaves me my older LS1.

I was thinking of forging my LS1 over the winter time and keeping this motor for a future install...My question is "How many forum member have made GOOD hp with a forged LS1 with say a P1, D1 series blower or N/A or would a better selection would be an LS6" or is its a waste of money?

Thanks

Ron
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Old May 8, 2008 | 11:13 AM
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Originally Posted by SudburyC5
This year my performance shop (Canadian Performance ) is upgrade my car to a forged 402 which leaves me my older LS1.

I was thinking of forging my LS1 over the winter time and keeping this motor for a future install...My question is "How many forum member have made GOOD hp with a forged LS1 with say a P1, D1 series blower or N/A or would a better selection would be an LS6" or is its a waste of money?

Thanks

Ron

"How many forum member have made GOOD hp with a forged LS1 with say a P1, D1 series blower "
TONS!
There is a difference between the LS1 and LS6 blocks in the webbing I think. From what I understand, it's a matter of preference and each has a supporting reason. I'm pretty sure my engine builder likes the LS1 over the LS6. We were just talking about that last week.
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Old May 8, 2008 | 01:06 PM
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Well I took my stock LS1 from my 99 and went to a 383 and the D1SC and got 702 RWHP out of it! ! !
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Old May 9, 2008 | 10:52 AM
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From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
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I took my '98's block and had it Forged to a 347 CID (only good to go 5 over on earlier blocks).

I'm laying down a moderate 639 RWHP and 540 RWTQ and it is strong as could be

So it's not a bad idea to do

Thanks,Matt
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Old May 9, 2008 | 11:24 AM
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Originally Posted by MIKE-C5
Well I took my stock LS1 from my 99 and went to a 383 and the D1SC and got 702 RWHP out of it! ! !
Pretty much the same here as Mike. Took my LS1 out to 383 cid w/a full forged Lunati kit & @ 14# my F1-R puts down 752 rwhp. If I'm brave I'll swap pullies for 17# & hit 828 rwhp but I can't get the power to the ground ( but it's fun trying!! ).

Gene
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Old May 9, 2008 | 02:54 PM
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The L6 is a better block. Better webbing and breathing.
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Old May 9, 2008 | 06:50 PM
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Thanks Guys for your input....looking like a forge LS1 in my Z71 truck...lower it and think I'm running in the Craftsman Truck Series...lol
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