Gain extra benefits by becoming a Supporting Member Click here find out how!

Classic Performance Products Nu-Relics Power Windows
American Auto Wire Hellwig Products IncPerformance Rod & Custom
Danchuk Catalog

Username Post: crankshaft        (Topic#360148)
Posts: 59

Reg: 12-12-19
03-13-20 08:53 AM - Post#2788566    

Pulled the engine out of my 79 Corvette, and the crankshaft meets all the aspects of being forged. I even looked up the casting #'s (what I could get) and that also said it was forged. Why would GM drop in a forged crank into an engine that isn't even making 200HP?


Member #241
Posts: 9004

Age: 72
Loc: Loganville, Ga.
Reg: 04-28-00
03-18-20 06:11 AM - Post#2788894    
    In response to sting199

Fewer warranty claims and a surplus in stock would be my best guess.

Hey T @!

In Memory of Mike McVeigh- The "Mad Spring Wacker" He roams the Forums of CT forever in our hearts and minds!


Super Senior Member
Posts: 3894

Loc: Bedford, Texas, USA
Reg: 11-13-02
03-23-20 07:39 AM - Post#2789312    
    In response to wagonmaster

My guess is its a L82 and thats what GM built them with from its introduction in 73 all the way until 80.

My 160hp 305 had a forged crank and 4 bolt main caps from GM.

1983 G20 Van, 350 TPI, Ported 906 Vortecs, Edelbrock 3817 Base, ASM oversize runners. Reed Custom Roller cam, 700r4, 12 bolt with 3.08 gears, Doug Thorley Tri-Y headers, true duals

Posts: 322

Reg: 07-09-18
08-31-21 03:58 AM - Post#2826296    
    In response to 1983G20Van

While there is no reason to have a forged steel crankshaft in an engine like that, the fact that it was assembled that way just goes to show that nothing gets wasted during manufacturing.


Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.155 seconds.   Total Queries: 17   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 03:11 PM