79 L-82 Engine rebuild
Drifting
Joined: Oct 2005
Posts: 1,615
Likes: 150
From: Forth Worth TX
Well it all depends on what you want to do and what your end goal is. Do you want a 300hp engine or a 1000hp engine?
The L-82 is a decent engine with most of the good parts. It's basically a 1970 L-46 with less compression. If you get the heads ported, upgrade the intake manifold and up the compression to 10.0-10.5:1 you'll have a 350-375hp (gross) engine.
The L-82 is a decent engine with most of the good parts. It's basically a 1970 L-46 with less compression. If you get the heads ported, upgrade the intake manifold and up the compression to 10.0-10.5:1 you'll have a 350-375hp (gross) engine.
Last edited by Revi; Nov 1, 2013 at 02:58 PM.
Melting Slicks
Joined: Jul 2009
Posts: 2,091
Likes: 40
Compression was the Killer of ALL cars after 1970. Chevrolets engines went LIMP with no compression 
.... Bring the COmpression back up to near 11:1 and it will run . The old 350 /350 was a sweet engine. Add a TRUE dual exhaust , NO SMOG or CATALYTIC converter , 3:70 gears and 4 or 5 speed it will still do decent.
Compression is one of the main ingredients . New cars have all the electronic computers to allow compression increases and still run on regular fuels .
Find a set of OLD 350HP 2:02 heads like from 68 -70
Or just call the junk yards like everybody does now days and get an engine out of dead GM VAN or GTO , Votecs and LS2 , and all that stuff.
.... Bring the COmpression back up to near 11:1 and it will run . The old 350 /350 was a sweet engine. Add a TRUE dual exhaust , NO SMOG or CATALYTIC converter , 3:70 gears and 4 or 5 speed it will still do decent. Compression is one of the main ingredients . New cars have all the electronic computers to allow compression increases and still run on regular fuels .
Find a set of OLD 350HP 2:02 heads like from 68 -70
Or just call the junk yards like everybody does now days and get an engine out of dead GM VAN or GTO , Votecs and LS2 , and all that stuff.
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Burning Brakes
Joined: Oct 2013
Posts: 992
Likes: 28
From: Sutton MA
I'm in the process of taking my engine out, thought about a crate engine, can get different hp for cheap money. If it wasn't for the help of an old friend, I'd be putting in a crate engine. Of course I didn't have the original block. My plan is do what was just mentioned, got new heads and putting in anew cam. But I'm at the mercy of my buddy's ability to rebuild.
Last edited by Tooonz; Nov 1, 2013 at 08:52 PM.
Thread Starter
Racer
Joined: Sep 2013
Posts: 254
Likes: 0
From: Charleston SC
