pics of factory 71-72 short/super/402's

[yote1234]

Originally Posted by JQ-72

Per our earlier conversation, it can be yours! 😜

i just might be able to make that happen... i will pm you

[425HP409]

Originally Posted by m455sx

Did Chevrolet offer the small block 400 as an option? I know they were produced from 1970-1980. I have seen then in late 70's trucks.

The small block 400 was only offered in passenger cars.

[425HP409]

Originally Posted by Ed 72 Sierra Grande

It was my understanding that California Big block trucks did not have a smog pump. My 72 GMC is a A/C truck with no evidence of it ever having a smog pump. My truck is also a Fremont truck. Expert Opinions appreciated.

I have a 67 Olds 442 built at Fremont and it has Smog and was delivered in California. If the car, or truck, was going to another state from California. it may or may not have had Smog installed at the assembly plant.

[Steeveedee]

Originally Posted by 425HP409

I have a 67 Olds 442 built at Fremont and it has Smog and was delivered in California. If the car, or truck, was going to another state from California. it may or may not have had Smog installed at the assembly plant.

I have the Chilton's Repair and Tune-Up Manual for '70-'80. It says that the '72, 402 engine is Air Injection Reactor equipped, 10 Series, except California. I'm used to the California vehicles being equipped with AIR and Federal vehicles not so equipped, so take the above with a grain of salt.

As for smog equipment, the installation depends on dealer destination, no matter where assembled.

[52napco]

This one will make yoi sick...high option truck been sitting 20 years in same.spot..its a 402 bucket seat chicken coop now..

[DANTIP]

Originally Posted by Steeveedee

I have the Chilton's Repair and Tune-Up Manual for '70-'80. It says that the '72, 402 engine is Air Injection Reactor equipped, 10 Series, except California. I'm used to the California vehicles being equipped with AIR and Federal vehicles not so equipped, so take the above with a grain of salt.

As for smog equipment, the installation depends on dealer destination, no matter where assembled.

All '72 1/2 ton trucks with the 402 had smog systems. However, the '72 402-powered 1/2 ton trucks were not able to be sold in CA because they apparently could not pass the emissions.

[Steeveedee]

Originally Posted by DANTIP

All '72 1/2 ton trucks with the 402 had smog systems. However, the '72 402-powered 1/2 ton trucks were not able to be sold in CA because they apparently could not pass the emissions.

That makes sense, except I worked for a Chevrolet dealer back then, and one could get the 402 in a car...though I do remember that there were a lot sold with the 454 (cars, of course) in '72.