84 - generic 350?
Thread Starter
Instructor
Joined: Jan 2008
Posts: 144
Likes: 0
From: Marco Island Florida
84 - generic 350?
I know this is a dumb question for most of y'all but, is the stock engine in my 84 vette just a generic Chevy 350 or is it some other variety?
I've searched but didn't find a clear answer. I do know about the Crossfire injection, and the tranny, just not the actual engine.
Thanks for the help!
I've searched but didn't find a clear answer. I do know about the Crossfire injection, and the tranny, just not the actual engine.
Thanks for the help!
Burning Brakes
Joined: Sep 2003
Posts: 1,214
Likes: 0
From: Miami FL
It is a 350 but I'm sure that the details in the rotating assembly and cam as well as the induction system were unique to the Corvette..not sure if that would be "generic" , for example, In the LT1 motors the Vette used 4 bolt mains and the F-bodies had 2 bolts...same "basic" motor but the Vette LT1 was unique to the Vette
Last edited by TOO_HOTTVETTE; Feb 21, 2008 at 10:44 PM.
Team Owner
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
It is a 350 but I'm sure that the details in the rotating assembly and cam as well as the induction system were unique to the Corvette..not sure if that would be "generic" , for example, In the LT1 motors the Vette used 4 bolt mains and the F-bodies had 2 bolts...same "basic" motor but the Vette LT1 was unique to the Vette
i'm sure the cam and heads were a little more performance than what you would find in other 350's that year.
Le Mans Master
Joined: May 2006
Posts: 9,226
Likes: 9
From: Irvine Ca
If it is really an L98, then it is a 2 bolt block. There is no other difference than, possibly the main cap bolts, between the L98 and other 350 engine blocks, so maybe what you've found isn't actually an L98. Other items worth noting, depending on the year, L98 and non-L98s, can have one or two piece rear main seals, left or right dipstick openings, and be for OE roller cams, or not. Depending on your ultimate usage, 4 bolt mains, while desirable, aren't needed as often as thought. Changing main caps is a machine shop operation. At the very least the engine has to be line bored when the original main caps are replaced.
RACE ON!!!
RACE ON!!!
1. in 85, the block was a standard 'ol 2 bolt main small block with forged pistons, L/H dipstick, 2 piece seal, flat tappet cam.
2. in 86, it was the first year for a R/H dipstick and one piece rear main seal, 2 bolt mains, flat tappet cam, pan reinforcement strips, cast iron heads.
86 1/2.......aluminum heads
3. in '87, roller cam with cam retainer, roller lifters, engine block drilled for lifter spider, 1 piece seal, 2 bolt mains, R/H dipstick, center bolt heads, guided rockers, oil pan reinforcement strips.
4. in '88 Roller cam with cam retainer, drilled for lifter spider,1 piece rear seal, R/H dipstick, 4 bolt mains, center bolt aluminum heads, guided rockers, oil pan reinforcement strips
5. In '89 same as '88 except for 113 D port heads, elimination of the 9th injector.
6. In '90, same as '89 except elimination of maf sensor
7. In '91, same as '90
2. in 86, it was the first year for a R/H dipstick and one piece rear main seal, 2 bolt mains, flat tappet cam, pan reinforcement strips, cast iron heads.
86 1/2.......aluminum heads
3. in '87, roller cam with cam retainer, roller lifters, engine block drilled for lifter spider, 1 piece seal, 2 bolt mains, R/H dipstick, center bolt heads, guided rockers, oil pan reinforcement strips.
4. in '88 Roller cam with cam retainer, drilled for lifter spider,1 piece rear seal, R/H dipstick, 4 bolt mains, center bolt aluminum heads, guided rockers, oil pan reinforcement strips
5. In '89 same as '88 except for 113 D port heads, elimination of the 9th injector.
6. In '90, same as '89 except elimination of maf sensor
7. In '91, same as '90
Burning Brakes
Joined: Feb 2006
Posts: 1,098
Likes: 1
From: Webster Texas
The 350 Crossfire/L-83 was a 2 bolt main block, it featured forged pistons, the cam had 403/415 lift, and mild duration. Twin throttle body fuel injection set up similar to the cross ram design of the carburated Z-28. In 1984 it was a true performance engine. It was only available in the Corvette. It gave the car a top speed of 137-143 depending on the test and options. quarter mile performance was 15.1-15.5 depending on the test you were reading. Again-great numbers for the time.
