L98 crank, forged? other engine spec questions
05-05-2003, 02:28 PM
#1
Le Mans Master
Thread Starter
L98 crank, forged? other engine spec questions
Does an L98 engine in an '86 come with a forged crank? Also, is the block a 4 bolt main? Are the pistons forged aluminum? This engine has the aluminum heads. Thanks for the help.
05-05-2003, 02:44 PM
#3
Safety Car
Re: L98 crank, forged? other engine spec questions (burners)
No, no, and no.
A little over halfway through the model year the coupes got aluminum heads. Chevrolet didn't start producing the convertible until midyear, the same time that the heads were changed over to aluminum. So all of the 'verts came with aluminum heads.
A little over halfway through the model year the coupes got aluminum heads. Chevrolet didn't start producing the convertible until midyear, the same time that the heads were changed over to aluminum. So all of the 'verts came with aluminum heads.
05-05-2003, 03:38 PM
#4
Le Mans Master
Thread Starter
Re: L98 crank, forged? other engine spec questions (burners)
Ok, so I guess the short block is really nothing special. Is it a one-piece rear main seal?
05-05-2003, 03:58 PM
#6
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Re: L98 crank, forged? other engine spec questions (MrNuke)
Nope, unfortunately we didn't get the 1 piece rear main... :nonod:
If you have a 2-piece, you'll be thankful if you have to change it, its much easier. :yesnod: Of course, with the one piece, it probably wouldn't need to be changed in the first place. :rolleyes: :smash:
[Modified by CentralCoaster, 1:01 PM 5/5/2003]
05-05-2003, 04:08 PM
#7
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Re: L98 crank, forged? other engine spec questions (MrNuke)
2 peice rear main?! Does that mean I can sneak it out and replace the thing? :eek: It is leaking ATM. :cuss
05-05-2003, 04:21 PM
#8
Le Mans Master
Thread Starter
Re: L98 crank, forged? other engine spec questions (BookSmart)
2 peice rear main?! Does that mean I can sneak it out and replace the thing? :eek: It is leaking ATM. :cuss
05-05-2003, 04:58 PM
#9
Safety Car
Re: L98 crank, forged? other engine spec questions (CentralCoaster)
Nope, unfortunately we didn't get the 1 piece rear main... :nonod:
I've heard different stories as to whether the rear main was changed beginning of the 86 model year, or halfway though, and whether or not it corresponded to the change to alum heads.
I've heard different stories as to whether the rear main was changed beginning of the 86 model year, or halfway though, and whether or not it corresponded to the change to alum heads.
