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3rd Gen ('78-'80): Identifying Engine

Old 12-04-2017, 12:15 PM
1 Year Member
Thread Starter
Join Date: Mar 2015
Location: Quito
Posts: 17
Default Identifying Engine

Hi Guys, I just have bought a 79 t-top to rebuild. I have no idea which engine do I have. How can I surely identify the engine. I am in Ecuador, The vin number is:


also, reading a manifold part number I found this one:
gm14007400 lhk12

Which seems to be the manifold part number for 400ci engines, bue according to wikipedia the 79 monte never had this engine, and acording to the VIN this is a corvette with 350 engine.?
Old 12-05-2017, 01:35 PM
Join Date: Nov 2017
Location: Isanti, MN
Posts: 828

On the passenger front side of the engine behind the altanator right in front of the cylinder head is a pad with numbers and letters that will positively identify which engine you have. Could also use numbers on back side of the block where transmission mounts too the engine and do a google search. The vin can only tell which factory engine it was built with (odds are a 305 ) the numbers on the manifold aren't going to help much.

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