1967 Chevrolet Corvette 427 Tri Power 435hp Now Built to 600hp. Original vin stamped on the block but we has no supporting documentation or build sheet. Please read the entire...
1967 Chevrolet Corvette 427 Tri Power 435hp Now Built to 600hp. Original vin stamped on the block but we has no supporting documentation or build sheet. Please read the entire description below.
One of the first things people always ask is how many Corvettes were built with these
options? Published GM records for the Corvette allow us to make a few assumptions and
then some guesses to arrive at a number that should be accurate, but might not be,
because it does require extrapolation to get and therefore presents no guarantees. I am
only going to consider options I was able to document as original to the vehicle and
percentages that I could validate, for this calculation. Here is what I can tell you with
some certainty – 3840 production 1967 Marina Blue Corvettes were built. From this point
forward you get the extrapolation based on known ECL code break downs which should
hold true - but again there are no guarantees, they did hold. For example 63 percent of
1967 production was the convertible body, does that percentage hold for the Marina Blue
paint choice? I personally believe it probably does, so I estimate that approximately
2420 convertibles were built in Marina Blue. Next we come to two tops (this vehicle
shows evidence of being a factory two top car, however the auxiliary hard top is not available, 41 percent of the convertibles were two top. I think that percentage would also hold so our number is 1003 Marina Blue two top Corvettes.
The other significant option appearing on this car is the presence of a 427 engine, it does
appear to be a factory big block vehicle, that narrows the number somewhat more but
still leaves us with a vague understanding of what the car actually was from the factory
the new number appears as 165 big block 67 Corvettes in Marina Blue with two tops were
built. The reasoning for the use of these options as choices in the above analysis will
become obvious, once you complete the report review. This again does not account for the
interior or seats, frankly those percentage build numbers are not identifiable. I do
suspect the above extrapolation is a real possibility and it should allow us to use other
options present with the vehicle such as side exhaust if they could be documented as
original items to the vehicle but at this point they can't. My inspection confirms that the
only options present on the vehicle which could be confirmed other than interior color
and leather seats are those mentioned above and used in the analysis to break the
production number down to 165. Each of those options appears to be factory restored
original configuration for this vehicle and every manufacturing technique known to apply
to the installation of those options is present and appears accurate for the vehicle.
Additional options are present, all considered desirable and all lending the restoration to
the appearance of a very nice 1967 Corvette. I would simply caution you that the engine,
transmission, rear end, interior, exterior color combination, side exhaust and bolt on
wheels should not be claimed as original - therefore there is no guarantee of the
configuration as represented. The engine is stamped with the original vin number but we are selling the corvette with no documentation supporting its a true numbers matching car.
The engine in the Vette is based on a 427 block. It has been bored .060 oversize and has a bore of 4.31" The stroke is 4.25. The piston is a JE SRP forged piston. It is a flat top piston with a single valve relief. All 4.25 stroke engine use an aftermarket connecting rod that is 6.385 long. The rods made by Eagle.
The cam is a Comp Cams solid roller that is a duplicate of the Chevrolet 2nd design off road racing cam.....but in a roller version.
The specs are Intake Exhaust
lift .540 .560
duration @ .050 242 248
advertised duration 294 300
lash hot .020 .020
Lobe separation angle 110 deg
The production date on the heads is 4 . 12. 67
The head casting number is 3904392
These are closed chamber heads and with this stroke the compression would have been a little high. As per the previous owner had opened the chambers up and polished them to bring the compression ration down to about 10.5 to 1 so it is pump gas friendly.
Estimated 600hp
South Jersey Classics is a 10,000-square foot classic and specialty collector automobile dealer, featuring 50+ vehicles. This vehicle is located in our showroom in Newfield, NJ, Our Dealership is on US Route 40 just off New Jersey Route 55, Exit 39B heading towards Elmer, NJ; conveniently just 40 Minutes East of Philadelphia, 40 Minutes West from the Major New Jersey Shore Points and 30 minutes North of the Delaware Memorial Bridge. Our Showroom is conveniently accessible from all major Southern New Jersey Roadways including New Jersey Turnpike, I-295, I-76, NJ Route 42, NJ Route 55, US Route 40, Atlantic City Expressway, New Jersey Parkway. Our website is www.SJClassics.com and our phone number is (856) 521-0832. Please contact us anytime for more information or to come see the vehicle in person.