| Re: 86 and 90 vette engine swap question |
Subject: Re: 86 and 90 vette engine swap question by bogus on 2011/4/26 15:49:40 What Joseph said... they are not identical... However, the 86 has flat tappets, versus roller hydraulic lifters. All verts and the last 8000 or so coupes had aluminum heads, this engine could very well have iron heads. 86 was the first year for the 1 pc rear main seal. One other minor detail, and this depends on if your DMV checks, or, you have some process (emissions testing) that would (could) check. Technically, it is against the law to replace with an older engine. If you have a MY1990 vehicle, you must replace with engine from same MY or newer. Just and FYI. Generally speaking, the L98 isn't all that uber-special an engine. It's mass produced and every GM product used it on one shape/form or another. The heads and intake were all that changed. Unless you get into pickups, where they had 4-bolt mains. If it was my project, I would look for a later block (from a truck) or get one and have it converted to 4 bolt mains. Oh, another detail, truck engines are illegal in cars (damned EPA), but if your area doesn't check, well, it doesn't really matter, eh? In short, $900 seems high for a motor you are going to rebuild. You really only need a shortblock to build from. |
