all 85-88 f-body v8's, 4 bolt mains?
#1
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Car: 1987 Camaro IROC Z28
Engine: 355
Transmission: 1994 T56
Axle/Gears: BW 3.27 (stock)
all 85-88 f-body v8's, 4 bolt mains?
this is kind of a history question, but also tech. Cdartz's question prompted this. our friend pulled apart an 88 l98 car and was very surprised to find 4 bolt mains. All numbers match on the block, and the suffix code even says 88 l98 for firebird, so it's the original block. Looking up the torque specs table in my Chilton manual for f-cars, it very clearly states that all V8 thirdgens, 1985 to 1988 were 4 bolt blocks. That includes LG4, L69, LB9, L03, and L98.
1982-84, and 89-92 are listed as 2 bolt blocks.
Can any owners, or people with the good thirdgen data books, like willie, verify this information? This comes as a total shock to me. if you have seen your original block with the oil pan off, what year are you, and what did you see? does it fit the chilton data?
1982-84, and 89-92 are listed as 2 bolt blocks.
Can any owners, or people with the good thirdgen data books, like willie, verify this information? This comes as a total shock to me. if you have seen your original block with the oil pan off, what year are you, and what did you see? does it fit the chilton data?
#5
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Chiltons manual? Theres more errors in there than I can count.
As for the block, dunno. It could have been a fluke, replacement, someone tried to make it look like it came in there, anything. Even vettes werent graced with 4 bolt mains. I have an 88 engine sitting in a car here that came right out of an 88 IROC, and its 2 bolt.
I'd say surprised is a good choice of words. Be happy it was either a mistake or swapped in.
As for the block, dunno. It could have been a fluke, replacement, someone tried to make it look like it came in there, anything. Even vettes werent graced with 4 bolt mains. I have an 88 engine sitting in a car here that came right out of an 88 IROC, and its 2 bolt.
I'd say surprised is a good choice of words. Be happy it was either a mistake or swapped in.
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Car: 1987 Camaro IROC Z28
Engine: 355
Transmission: 1994 T56
Axle/Gears: BW 3.27 (stock)
that's what i thought. i'd never heard of a 4 bolt in a thirdgen factory, but it was in there clear as day, and all the numbers match. Must be some sort of a factory fluke i'm thinking, because all the dates on the block and the install correspond to when the car should have been manufactured.
i definitely would not put any faith in what the chilton manual said, that's why i posted here
i definitely would not put any faith in what the chilton manual said, that's why i posted here
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Car: C1500
Engine: 350
Transmission: 700r4
Axle/Gears: 2.73
A lot of 2 bolt and 4 bolt main blocks have the same casting numbers. go to mortec.com and look. I'd like to know what my dad's '88 truck has in it, but when i looked up his block's casting number it says 2 bolt and 4 bolt.
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