boss79z

iTrader: (1)

I have an extra ls1 block. Looking to build a motor for my Camaro. Car currently is a sbe pt7675 on e85. It went 10.20s this past weekend. I know ls1curt went 8s on the stock block. Just curious what people have made on the ls1 block and reliability? Thanks for the help

Andrew

Ryans99ls1

iTrader: (16)

An aluminum block can take 1000 no problem but people sayyy that around ~900 the walls tend to distort over time and with miles, especially if its primarily a highway car. This is a very subjective statement though, as it really depends on your driving habits/style and of course the tune. The common trend is to go iron when you are planning over 800 on an ls1.

I have been over 600 for the past 2 years with the last year over 700. 3-4k miles and a lot of highway pulls.

HCI2000SS

iTrader: (2)

I agree that most say around a 1000 hp, but I would not test that theory on that aluminum block lol

GR8GAME

iTrader: (10)

I made 709 on my stock bottom end LS1 with a procharger @ 12#s.

Gonna see what I can get this LS3 block up to...

mrstepheneades

LOL stock all ls1 except cam with a s475 on 17psi made 755 pumpgas/meth on a less than 6000rpm dyno pull. Now on 20psi and plan to test the limit before I put a forged engine in. 22psi or whatever the turbo will push. Engine is still going strong. Im very surprised. I was under the impression that the ls1 was the weaker engine. Guess I got a lucky one.

Im building an iron 5.3 though. Forged all the strength stuff.

F110Mech

iTrader: (2)

I plan on pushing the block to its limits with a forged rotating assembly if it ever goes together

willizm

iTrader: (10)

I have a forged ls1 with a stock crank. Hoping to get around 850-900whp out of my setup with more fueling. Currently puts down 735whp and 920wtq. No issues so far.

THADD

iTrader: (12)

I was running high 8's on nitrous. With my cars weight I had to be making 850 or so to the rear wheels to run those times. Stock block, stock cubic inches LS1

Camaro9969

iTrader: (12)

Plenty of people run 8s on a stock ls1 block but id say 1000 crank is pushing it and its only a matter of time ...

fotoboy

iTrader: (1)

2 years so far on 7-800 whp. Stock forged.

yelo04goat

iTrader: (11)

any thing high performance is "just a matter of time" RUN it! im hoping to make 800+

boss79z

iTrader: (1)

Thanks for the responses. I am just wanting to run 8.60s or so with the stock block. It will need a turbo before I ever push the limits of the block. I will be putting a good crank rods and pistons in it.