itspossible01

iTrader: (4)

what is the largest (not re-sleeved) displacement for an ls2 engine?

slow trap

iTrader: (22)

well you could probably bore it .030" over if it magnafluxed to be thick enough with a 4.125" stroke crank for 421 cubes but most just hone them for a 416 cube. if i was going with an aluminum block i'd go ahead and get the l92 block myself for even more cubes.

itspossible01

iTrader: (4)

I will go .010 over on the engine.....what is the recipe for 416 and is this safe to use with a pro-charger? I was told there was a 402 and 404 kit but haven't seen the 416. If I do an L92 and go for 427......what am I looking at going that route in terms of stroke and rod length?

Beast96Z

iTrader: (21)

If your going to force feed it, stick with the 4" stroke 402. The long stroke and added boost won't be very friendly on the rings over time. Just add a pound or 2 of boost to make up for the lost cubes.

Beaflag VonRathburg

iTrader: (176)

Agreed.

I have seen the 421 combo like stated above, but it's pretty much a nitrous race engine that just ran high 8s @ 3600+lbs race weight. The compression is 12:1 and runs on 93. It's a beast.

itspossible01

iTrader: (4)

OK.....stay with a 402......are there off the shelf parts that would give me a .10 over bore.....trying to stay away from custom parts and the block might need to be be .10 because of a ring groove.