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 Series III 3 engine swap

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charlieRobinson
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PostSubject: Series III 3 engine swap   Sat Jan 14, 2012 7:53 pm

Did a search but...
Has anyone installed a series III L67 into their Riviera?
It seems to me there isnt much difference between the series II and III besides the gen V blower and the air intake.
They have to be compatible with our cars.. right?
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Mr.Riviera
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PostSubject: Re: Series III 3 engine swap   Sat Jan 14, 2012 9:33 pm

charlieRobinson wrote:
Did a search but...
Has anyone installed a series III L67 into their Riviera?
It seems to me there isnt much difference between the series II and III besides the gen V blower and the air intake.
They have to be compatible with our cars.. right?

It has been done but it is far easier to just swap blowers than try to get a new motor in.
Problems arise when you realize the wire harnesses are not the same and the small things like injectors, oil sensor etc are different between the L32 and the L67.

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1996 with 244k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs.
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Johnny5
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PostSubject: Re: Series III 3 engine swap   Sun Oct 27, 2013 1:49 am

Its been done and to answer your question I have a series 3 L32 in my 96
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Johnny5
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PostSubject: Re: Series III 3 engine swap   Fri Aug 15, 2014 8:31 pm

Okay im trying to change my pulley size and its different from the series 2
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matt270avian
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PostSubject: Re: Series III 3 engine swap   Fri Aug 15, 2014 10:39 pm

Since you're running a series III with a Gen V blower you generally want to go 2 pulley sizes higher than  us. So basically your 3.8" stock pulley is the equivalent of a 3.6" on our cars. With your mods you could probably get away with a 3.7" or a 3.6". That being said, I would invest in other mods like headers or rockers so that way you could really drop down in size. Dropping to a 3.7" or a 3.6" would be a waste of money IMO.

If you need a pulley puller I have one that I'm willing to rent out. PM me if you're interested.

http://rivperformance.editboard.com/t23-faq-modding-101-how-to-increase-acceleration-performance?highlight=modding

http://rivperformance.editboard.com/t3656-faq-smaller-sc-pulley-what-size#36
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turtleman
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PostSubject: Re: Series III 3 engine swap   Sat Aug 16, 2014 1:08 am

The stuff that differentiates the series III (L32/L26) from the series II (L67/L36) isn't really beneficial  with the exception of the blower. A 'series III engine swap' would essentially be swapping nearly the same physical engine and running a newer powertrain control system and returnless fuel system, etc. which would be a real pain to integrate with no notable payoff. Just take the goods (blower) off the series III and put it on the series II.


Last edited by turtleman on Sun Aug 17, 2014 3:02 pm; edited 1 time in total
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Johnny5
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PostSubject: Re: Series III 3 engine swap   Sun Aug 17, 2014 12:26 pm

Ii have had the S3 in my car coming up on two years now it swapped right in no problem just changed the tb and fuel rails plus the alternator had to be shaved a tad bit to fit but its perfect. Nothing changed I just haven't had time to do no mods being that this is my only vehicle n all at the moment
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