Stock bottom end LT1 with 70k miles on it. Putting a cam in and possibly heads but at least cometics with ARP head bolts and want to spray a 150 shot on top. Who thinks it will hold?

 

There are a few guys running 200 shots on stock bottoms.

It's always a crap shoot of course. You sometimes wont know if you have a weak spot until it's too late, but the main thing is to stay out of detonation. That, and cross your fingers.

 

it's like playing Russian Roulette

 

What is basically the max a stock lt1 and ls1 bottom end will stand up to?

 

Yeah I'm hoping I can make 550 on the stock bottom end. If I don't get heads I'll be around 500ish which should hold.

 

The general nitrous rule for max shot is half the HP of the engine.

If your LT-1 makes 275 HP...you should only run a 137 HP shot. I think this is why so many people use the 125 HP kits. I know a bunch of people spray as much much as 250 shot but I don't think they care about damaging their LT-1.

I think you'll be fine with the 150 shot as long as you R/R the injectors and upgrade the fuel pump and plugs.

 

I too think you'll be okay on a 150 shot, as long as the fuel/tune are good. A progressive controller could help you take some of the shock of the hit off too.

Matt

 

I think putting in cometics and ARP head bolts will be a big benefit. How strong are the rod bolts?