Need help identifying 327
Thread Starter
Cruising
Joined: Feb 2003
Posts: 12
Likes: 0
From: oxford pa
Need help identifying 327
Sorry if this has been covered. Looking for help trying to figure out what car/truck my 327 came out of. History: I bought a 1985 GMC Sierra Classic 1500. The previous owner said that the first owner said it had a rare 327 out of a vette (sales talk?). I have found a cast # on back of engine (3914678 or 3). Also stamped #'s on front (18N30605 V1101ME). Any help ? Its hard trying to get parts today ssying i think i have a late 60's 327.
Thanks Dan
Thanks Dan
Team Owner
Joined: Feb 2003
Posts: 54,110
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From: Sitting in his Nowhere land Hanover Pa
2024 C2 of the Year Finalist - Unmodified
2015 C2 of Year Finalist
68 327/210 with a two barrel carb, powerglide auto from a 68 Camaro. the motor was assembled on Nov 1 1967 built in flint for a Camaro built in Norword Ohio
Le Mans Master
Joined: Mar 2004
Posts: 7,493
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From: Little Rock AR
The '68 327 is known for having one of the strongest crankshaft and bottom ends in a SBC. Most earlier 327's have the small journal crankshaft and weaker small journal rods. The small journal rods are a known weak spot for high RPM uses.
This '68 327 has the bigger 350 sized main journals and larger 350 size rod bearing journals. The main/rod journal overlap is very high so it can spin higher RPM without over stressing the bottom end. The only 327 that would be better than this would have a forged '68 crank and those are fairly rare. This cast iron crank 327 engine is desirable and has a lot going for it.
This '68 327 has the bigger 350 sized main journals and larger 350 size rod bearing journals. The main/rod journal overlap is very high so it can spin higher RPM without over stressing the bottom end. The only 327 that would be better than this would have a forged '68 crank and those are fairly rare. This cast iron crank 327 engine is desirable and has a lot going for it.
1967 Pedal Car Champion
Joined: Mar 2020
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From: US-PNW
Safety Car
Joined: May 2001
Posts: 4,759
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From: Fairfax Virginia
The 1968 327 is still a desirable engine. I drove a 1968 with one and it was awesome the way it revs and would wind up in a hurry if you asked it to. I would prefer a 327 over a regular 350 as far as the revving goes. I also drove one in a 1964 Impala SS with a four speed and that big car would really move with the worked on 327 under the hood.
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