PDQ67
The 327/340 hp ... That engine was only offered in a Corvette and had a alum. intake with a C series carter AFB in 1962. It WAS NOT what you called a medium valve engine as well. The 461 head was introduced in 1962 and had a 2.02 intake and a 1.500 exhaust valve. If it had a 461x head which was very rare even then the valve size was 2.02 and 1.600. ...
:noway: Nope
I owned an original 1962 RPO-396 (note '62 was the last year for all letter engine options - '63 on used a Letters/Numbers, i.e. RPO-L79 & etc., option designation. ) 327/340 Corvette for many years and the heads (-461X)
were "Medium Valves", in that they were 1.94" (most common SB sizes are 1.72/1.94/2.02") Intakes.
I took that engine apart many times :thumbsup:
All Chevy Performance heads were max. 1.94" Intake valve size until 1964 when the 2.02" valves size was introduced - most don't realize the 2.02" valve heads didn't come out 'til then.
These earlier style heads, used on both 283's and 327's, were commonly called "Power-Paks" v.s the '64 on "Fuelie" heads.
I think this older designations has gotten lost over the years and everyone I hear now just refers to any 'Double-bump' head as a 'Fuelie' - I usually don't bother to correct folks anymore ...
I also owned an original 1962 Impala SS with a 327/300 for many years, and it was a Rochester "4-Jet" -
NOT a Carter carb on it - because it was an Auto
The 327's got different carburators depending on the transmission type.
Only the Manuals trans cars got the WCFB's (some HP were AFB's ) on them.
I worked on many of them back-in-the-day and still have most of the service books and a full set of Carter 'Gauges' (yes, there is such a thing
).
I was the second owner of the Impala and the car was untouched when I got it - one of the many I would LOVE to have back, they guy who owns it in SoCal. won't sell it back - and he's younger than me
I have a data sheet somewhere that list the major spec.s for the 327 RPO codes.
There were lots of RPO's for that engine in 1962. I remember RPO-300, 397 (what was in my Impala), 396, 582, 583 and I think there were one or two more ...
Hopefully JohnZ will see this post and will have more of the original confiquration information for these early Corvette and 327 engines in his NCRS
information.