jmoschetti45

Since I might get myself a Camaro SS with the LS1 I'm wondering what the largest desplacement I can get out of it is. I've seen 427 and I've even heard claims for 441. So whats the largest option?

PREDATOR-Z

I've read about 454

777

iTrader: (21)

ARE i think has a 430+ci

xfactor_pitbulls

iTrader: (16)

455 H.O. GTO Hits The Street! Dyno #'s Inside!

--------------------------------------------------------------------------------

MTI has just finished it's first GTO with a new Prototype engine. The displacement is 455 cubic inches using a Darton MID block. Final rear wheel #'s are 519 rwhp and 527 rwtq. Baseline stock numbers were 291 rwhp and 308 rwtq. That is a 227 rwhp increase! Needless to say, this car is amazing.

Brandon

777

iTrader: (21)

is this a sleeved LS2 block? i'm guesing not since the hp is so low on the baseline

GuitsBoy

iTrader: (4)

No, it was a Darton MID block. Its a sleeved LS1/ls6 block with specific darton inserts.

-Tony

fbj69

454 Is the biggest i'll get the specs when i get home.

murphy80

I read something about a 472 cid LS1, but I can't find the article right now. When I find it, I will try and post it.

vette.se

If you would start out with a 427' C5R block could you take it to a 454' with only stroke or would it need stroke + bore ?

fbj69

With a cylinder Bore at 4.125 and a crankshard stroke at 4.250 454 is possible!!!

SILVER BULLET

iTrader: (1)

ARE has a 436-442. Gen 3 Performance has a 451 with a 4.155 bore and 4.155 stroke

427 LS1

iTrader: (10)

I have a 4.155 bore and a 4.125 stroke = 447

black_knight

iTrader: (1)

On those engines with 4.125 bore, does a large stroke cause the same problems with piston velocity and rod ratios as, say, on a stock bore w/4.125 stroke?

MachoCamacho

455 they made a GTO with it, ran out of intake before it ran outta power.

jrp

iTrader: (16)

correct, darton is sposed to come out with 4.200 sleaves