What are the original carburetors and intake manifolds used on RQA 327 300hp engines? Height is an Issue.

[Luma]

What are the original carburetors and intake manifolds used on RQA 327 300hp engines? Height and ORIGINAL numbers are Important. Were Carters original equipment? How about a low profile intake manifold? I have seen Early RQA's with a Studebaker Avanti style air cleaner but don't know what carb its on (4 7/32 neck) ?

    Thanks RQA 217

[Mel]

My '66 has the 327/300 motor.  The number on the intake manifold immediately behind the carburetor is 3872783; immediately under that is GM2.  The number immediately in front of the distributor is J185.  The carburetor is a Holley 4160.

I don't believe the 327 was still manufactured in '78. GM was making the 350 by this time; perhaps Avanti Motors bought a bunch some years earlier and was still using them in '78 -- I don't know.  The 327/300 had 2 'humps' on the front of the cylinder heads, one on each side; they were called 'Camel Hump' heads.

Hope this helps.  Good luck.

[Gunslinger]

Avanti Motors went to the 350 engine in 1970 with the start of the RQ-B series.  The last few RQ-A models would still have used the 327.  But...as already said...there could have been some unused until much later.  

The intake would likely have been what was standard on a Corvette of that year.  

[John D]

my 79, likely NOT stock, had a Edelbrock MT-1 (early low profile single plane Torker, popular among early Vette enthusiasts) manifold and Carter AFB. Replaced the Torker with a Performer EPS, well worth the extra 3/8" height.

[Gunslinger]

Single-plane intakes are better for high rpm performance but a dual-plane such as the Performer are better at lower rpm’s and better all-around performance. 

[Guy]

Having recently installed a SBC in my 63 I have contended with the heighth issue, I have the Edlebrock performer intake and Edlebrock carb, air cleaner base with recessed center that fits over carb. The trick for me was to go from a 3 inch aircleaner element to a 2 inch. There is no doubt that the SBC sits taller than the Stude 289 in the engine bay.