LT1--L99 Differences
Thread Starter
Safety Car
Joined: Jul 1999
Posts: 3,946
Likes: 63
From: Marianna FL
LT1--L99 Differences
I'm picking up an L99 from a friend of mine for spare parts (fuel rails, brackets, etc) for another project and would like to know what other parts are usable on an LT1. I've read the intake is different, but I'm not sure how. Any info or links would be greatly appreciated.
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
l99 intake has slightly smaller ports...lt1 intake casting number (look middle pass side near mtg bolt) ''1010xxxx''... l99 and lt4 have diff casting ...some l99's got the lt1 intake and vice/versa from factory
opti, water pump, lifters--same.
injectors,egr, block, heads,cam, crank, pistons -- different.
opti, water pump, lifters--same.
injectors,egr, block, heads,cam, crank, pistons -- different.
Thread Starter
Safety Car
Joined: Jul 1999
Posts: 3,946
Likes: 63
From: Marianna FL
OK, well obviously its a smaller version of an LT1 thats why I bought it for spare parts...
Redrose, do you know if the oil pan is like an F-body or does the B-body have its own pan. Thanks for the info.
Redrose, do you know if the oil pan is like an F-body or does the B-body have its own pan. Thanks for the info.
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
F-body, B-body, and Y-body all use different pans on the lt1 block.....interestingly, the B-body pan on your l99 will fit 91-96 B-bods, and as you prolly know , 91-93 were sbc1 engines, 94-96 were sbc2/lt1 (not to be confused with sb-2 race motors which are unique)
btw, some 9c-1 police cars have l99 power, most found in large city fleets that spend vast majority of their life at minimum speeds...drove one of those and was a bit surprised by the ''attitude'' it showed.
btw, some 9c-1 police cars have l99 power, most found in large city fleets that spend vast majority of their life at minimum speeds...drove one of those and was a bit surprised by the ''attitude'' it showed.
Last edited by redrose; Nov 3, 2007 at 06:26 PM.
