Help please
Thread Starter
8th Gear
Joined: Feb 2005
Posts: 8
Likes: 0
Help please
Guys i have a 85 vette. but the car has aluminum heads. and a 1pc rear main seal whats up with that. the car only has 79000 miles on it. the block has all new freeze plugs the numbers on the heads are 17981 the numbers on the block are 14093638 the vin is1g1yy0789f5117085 My well I just want to know what motor I have so when I buy parts I can get the right stuff
carfax.com
VIN: 1G1YY0789F5117085
Year/Make/Model: 1985 CHEVROLET CORVETTE
Body Style: Coupe
Engine Type: 5.7L V8 TPI OHV
Manufactured In: UNITED STATES
Search Results: 0 records found in our database
I understand its a L98. My question is did this car come stock with a one peice rear main seal in 85 also in 85 did they use aluminum heads. To me the motor doesnt seem to match the car. It is a Vette motor just a newer motor i was wondering if some one could use those number i gave to tell me what I have.
carfax.com
VIN: 1G1YY0789F5117085
Year/Make/Model: 1985 CHEVROLET CORVETTE
Body Style: Coupe
Engine Type: 5.7L V8 TPI OHV
Manufactured In: UNITED STATES
Search Results: 0 records found in our database
I understand its a L98. My question is did this car come stock with a one peice rear main seal in 85 also in 85 did they use aluminum heads. To me the motor doesnt seem to match the car. It is a Vette motor just a newer motor i was wondering if some one could use those number i gave to tell me what I have.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
That is not the original engine. The one piece rear main seal was introduced with the 1986 model year. Aluminum heads started in late '86 in convertibles. I have no reference to block casting number, so I can't help you there. The heads should have a longer cast number, similar to your block number. The Corvette L98 aluminum heads have casting numbers ending with 128 or 113. The meaningful number is cast into the head in an area that can only be seen with the valve covers off. Since it has new freeze plugs it may have been assembled with parts from several sources and may not conform, strictly, to any particular year model. A good many of the parts span a number of years. Are you looking for anything in particular at this time?
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