Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

Lg4 to l98 complete

Old Yesterday | 03:44 PM
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87transamMN's Avatar
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Joined: Aug 2025
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From: MN
Car: 1987 trans-am
Engine: 350
Transmission: 700r4
Axle/Gears: I dont know.
Lg4 to l98 complete

Finally!!!! Through a ton of help of some of you extremely knowledgeable members and a few mistakes, I finally got my trans am running and driving! Alot was entailed from the swap but it started as a 305 and someone slapped in a 350 and drove till the crank broke behind the snout, I grabbed it and a l98 with 100kish from a member, a y pipe kit from a member, headers from marketplace, rebuilt e4me from mountain man, and some fresh fluids and she it's running extremely well!! I had a issue forever and it ended up being the prom chip tabs were bent away from contacts from me removing it a few times. I've learned a lot and appreciate the help! This thing has some pep! Will be dyno tuning it soon here to see how well the stock l98 can perform with a carb! Also it's a 700r4 car. Cheers!
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