'66 BB smog diverter valve PN#

[Dan Pepper]

I purchased an original, unrestored '66 BB smog pump, complete with original hoses and correctly dated clamps, all in excellent condition. The diverter valve came with the system, and is stamped 26294. On the same surface there are raised cast identifiers including "MADE IN USA," "RP," AND "GM."

My question is that the # stamped on the valve is different than what the judging manual calls for. I was told by an early Corvette smog afficianodo (Don Dorfman), that a different valve was used on early BB smog cars, then were switched to a different unit (the one in the judging manual I think.

Can anyone confirm that this is or is not the correct diverter valve?

Thanks,
Dan Pepper

[Joe L.]

Re: '66 BB smog diverter valve PN#

Dan-----

GM #7026294 (stamped 26294) was the diverter valve used for earlier 1966 Corvettes with small block engines and K-19. GM #7026295 (stamped (26295) was the valve used for earlier L-36 big blocks with K-19(L-72 was exempt from 1966 California exhaust emissions control requirements). GM #7036195 (stamped 36195) was the valve used for later 1966 small blocks with K-19 and all 1967 small blocks with K-19. GM #7036196 was the valve used for later 1966 L-36 big blocks and all 1967 big blocks with K-19.

[Joe L.]

Re: '66 BB smog diverter valve PN#

Dan-----

GM #7026294 (stamped 26294) was the diverter valve used for earlier 1966 Corvettes with small block engines and K-19. GM #7026295 (stamped (26295) was the valve used for earlier L-36 big blocks with K-19(L-72 was exempt from 1966 California exhaust emissions control requirements). GM #7036195 (stamped 36195) was the valve used for later 1966 small blocks with K-19 and all 1967 small blocks with K-19. GM #7036196 was the valve used for later 1966 L-36 big blocks and all 1967 big blocks with K-19.

[Dan Pepper]

As always, thanks for the info, Joe. *NM*

[Dan Pepper]

As always, thanks for the info, Joe. *NM*