Riv Performance
Would you like to react to this message? Create an account in a few clicks or log in to continue.

The 8th Gen Riviera Resource
HomeDashboardLatest imagesSearchRiviera Questions & AnswersWrite-Ups IndexRegisterRelated LinksLog in


 Differences in VIN "3" and "C" engines

Go down 
2 posters

Name : Ryan
Age : 35
Location : Lewisberry, PA
Joined : 2009-09-01
Post Count : 260
Merit : 2

Differences in VIN "3" and "C" engines Empty
PostSubject: Differences in VIN "3" and "C" engines   Differences in VIN "3" and "C" engines EmptySun Oct 27, 2013 6:41 pm

As I've been doing my engine rebuild I have started running into this important engine spec. I had to buy special METRIC piston rings for my VIN "C" LN3 engine. I know that VIN "C" engines have a balance shaft and Hydraulic Roller Lifters. And I have recently run into some info [see link below] that indicates size differences in the valve sizes. Upon measuring my valve stem diameter, 0.3408", according to this article, points to my Cylinder Heads being for a VIN "3" engine. I'm not sure if these engines had interchangeable Heads. If my Cylinder Heads are for a VIN "3" engine, but my engine is in all other respects a VIN "C", should i consider buying VIN "C" Heads? Can anyone verify the info in this article? And lastly, are there any other differences between these engines I should know for buying parts for the upper half of the engine?


I think if there are enough responses, this can be a very informative thread for others on here who have late '80s and early '90s Rivieras.
Back to top Go down

Name : Derek
Age : 51
Location : Reading, MA
Joined : 2007-01-31
Post Count : 7717
Merit : 109

Differences in VIN "3" and "C" engines Empty
PostSubject: Re: Differences in VIN "3" and "C" engines   Differences in VIN "3" and "C" engines EmptySun Oct 27, 2013 8:15 pm

If they take the same head gaskets, based on what I read there, the heads should be interchangeable. Sounds like it's worth trying! Larger valves = WIN! wink
Back to top Go down
Differences in VIN "3" and "C" engines
Back to top 
Page 1 of 1
 Similar topics
» engines in a 1995 riv
» Pretty sure our engines are bullet proof.
» General stuff about the 1953-1966 'nailhead' engines...

Permissions in this forum:You cannot reply to topics in this forum
Riv Performance ::   N/A 3800 Tech :: Pre-Series I Engine & Transmission-
Jump to: