No, my car originally was a 390 horse 427. I have all the original parts. The engine is on a stand next to the car. Here's a list of all the pertinent data. Hope it helps.

Steve

1967 Corvette Information VIN 194677S103151

Trim Tag:
D07 ........... November 7
67 467 ........ 1967 Convertable
972 ........... Ermine White
407 ........... Red Vinyl Interior
S1630 ......... 1630th St. Louis Body

Engine Casting:
3904351 ....... 67 Corvette

Engine Casting Date:
J 18 6 ........ October 18, 1966

Engine Pad Stamp: (See note below)
TI072IL ....... Tonawanda, October 27, (mistake in stamping), L36, 390 HP, 1x4BC, Spec.Cam, Hyd. Lifters & 4-Speed

Cylinder Heads:
3904390 ....... 427ci, 390hp, 400hp (early production)

Cylinder Head Casting Dates:
Left: J 12 6 October 12, 1966
Right: J 24 6 October 24, 1966

Intake Manifold:
Casting# 3866948
Date: H206 - September 20, 1966

Is your car a 435hp? If it is what does the block casting number look like?
I have read that the 435hp block could have started out as a #3869942 but changed to #3904351 on the line. Advise if possible, thank you. JASPER63