Engine code quickie II - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Richard H. · 01-12-2007, 10:50 AM

The numbers on the block are 3997771 and supposed to be a 350 and get this, the engine is already on a stand and that's the way they are selling it.
Any clues on the numbers?

Richard H. · 01-12-2007, 10:59 AM

I looked at this site below.
http://www.mortec.com/castnum.htm
And their numbers don't go up to 3997771 Hmmm..

**WorkinLonghorn** · 01-12-2007, 11:19 AM

That part number,3997771 is for an intake manifold used on L82 and other early 70s apps.
The number you want is the one at the rear of the engine left (drivers) side. Or the pad at the front of the right (passenger) bank.-cougar

Richard H. · 01-12-2007, 11:37 AM

Thanks Cougar, my Sdil was doing the looking for me, so I am going to go look for myself. Apparently there is a RS camaro sitting there also that has never been driven in the rain. Closest I could come on the numbers she gave me was a 427 cid

01-12-2007, 10:50 AM	#1
Richard H. Spanked once Join Date: Oct 2006 Location: Intheshop, Indiana Posts: 969	Engine code quickie II The numbers on the block are 3997771 and supposed to be a 350 and get this, the engine is already on a stand and that's the way they are selling it. Any clues on the numbers?

01-12-2007, 10:59 AM	#2
Richard H. Spanked once Join Date: Oct 2006 Location: Intheshop, Indiana Posts: 969	Re: Engine code quickie II I looked at this site below. http://www.mortec.com/castnum.htm And their numbers don't go up to 3997771 Hmmm..

01-12-2007, 11:19 AM	#3
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,873	Re: Engine code quickie II That part number,3997771 is for an intake manifold used on L82 and other early 70s apps. The number you want is the one at the rear of the engine left (drivers) side. Or the pad at the front of the right (passenger) bank.-cougar __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme.

01-12-2007, 11:37 AM	#4
Richard H. Spanked once Join Date: Oct 2006 Location: Intheshop, Indiana Posts: 969	Re: Engine code quickie II Thanks Cougar, my Sdil was doing the looking for me, so I am going to go look for myself. Apparently there is a RS camaro sitting there also that has never been driven in the rain. Closest I could come on the numbers she gave me was a 427 cid



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