LT1 manifold question (sort of NOT ECM related)

Andrew Choset agc3 at cornell.edu
Mon Jan 10 21:03:54 GMT 2000


>> The thread on the 92-93 LT1 Vette just got me thinking.  Obviously, the LT1
>> motor doesn't have a distributor so those my first problem.  My question
is,
>> will the LT1 manifold and intake plenum adapt to an earlier L98/B2L Tuned
>> Port engine sans plenum, runners, and intake?  Are the heads different?
>> Probably no distributor hole, right?  Does anyone make such a setup for the
>> earlier FI V8s, such as Accel or Arizona S&M?  Just curious.  Looking for
>> **CHEAP** ways to unchoke the induction system on my 89 L98 at higher rpms.
>
>The heads are different.    Also the 92-93's don't have any water
>running through the intake.   I think the years before that had
>coolent in the lower intake manifold?.    I believe accel AND AS&M
>both make replacements (the same one maybe) but I also seem to
>remember that they want about $1200 for their setup.    Didn't the L98
>engines used to have aftermarket bigger runners to improve breating?
>or do you already have that?

TPIS makes the miniram, which is basically an LT1 manifold suitable for
conventional SBCs.  AS&M makes some large-tube runners.  Accel makes
Large-Tube Runners usable with a stock plenum, a high-flow base, and they
also make the SuperRam plenum/runners(which I just installed ~2 weeks ago).
 Edelbrock makes a base and runners, SLP makes runners.  None of it is
cheap, really. 

HTH,

Andrew Choset
88 IROC L98 w/SuperRam, T56



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