ChameleonFormula3

iTrader: (1)

Ok guys needs some input. I have a 2000 Formula M6 with 65K original miles. I have come across a freshly rebuilt LS2 short block for a good deal from one of my friends. It's already got a 24 tooth reluctor, and I already have some heads and a Cam that was going to go into the LS1, that I can slap on the short block, and pretty much just pull the Ls1 out and drop the LS2 in. My question is, what would it really be worth it? Pros/Cons? Eventually I'm probably going to spray the car. The car is also just going to be. Drag/ toy car. Figure if I did I could sell the Ls1 and make some money and not really be out anything.

HCI2000SS

iTrader: (2)

The rods and pistons stock in the LS2?

ULTIMATEORANGESS

iTrader: (4)

ls2 imo is a worthwhile upgrade.

ChameleonFormula3

iTrader: (1)

Yes stock Pistons

MonmouthCtyLS7

iTrader: (6)

65k is nothing on the LS1, you wont see any power differences between the 2 bottom ends though unless you upgrade to a LS3/92 top end,the Gen 4 rods are supposedly better. If your doing the work yourself why not.

ChameleonFormula3

iTrader: (1)

Guess I should mentions I have PRC 2.5 heads and VRX5 cam, LS6 manifold soon to be a 92/92 setup that I would be putting on the LS2 short block if I decide to go that route. Would I not see more power with the LS2 short block?

Fry_

I would expect so. The heads should be able to breath better with the larger bore, and even ignoring that simple hp/ci from the same heads and cam would take a 425 hp LS1 to a 447 hp LS2. Plus the better gen 4 rods would allow you to more safely spin a motor with a cam that size past peak hp.

z28_YOU_HO

iTrader: (7)

I would do it no doubt.. If you plan on spraying it I would wait and do forged internals while the motor is already apart.

Worth while investment to save time down the road and make way more power while not crossing your fingers for an explosion every spray - been there before

ChameleonFormula3

iTrader: (1)

I probably won't ever spray it over a 150 shot. I'm getting it fo a good price if it goes down the road I'll just rebuild stronger lol

R6cowboy

iTrader: (3)

Doing the work yourself, it would absolutely be worth it. The LS2 does indeed have stronger rods than the LS1 (it's not supposedly better, they are better) and an LS2 shortblock will definitely have an increase in power over a LS1 shortblock no matter what topend is on it.

ChameleonFormula3

iTrader: (1)

Ok sweet that's what I wanted to hear! Then up front cost will be more but I figure once I sell the LS1 that will more than make up for it. What do you guys think a 65K mile Ls1 would should sell for?