kencpless@gmail.com

I have 3 fasteners that were with the group from the removal of the engine and transmission. These were taken from a '71 Cutlass Supreme 350 CID / TH350. There's a 3/8-16 x 3/4" with Rockford on the head, along with a flat washer and nut. The second is 1/4-20 x 1/2" and finally a 1/4-20 x 1.25" with a small diameter hex head. This last bolt had gold over-spray on the head, so it was attached to or in close proximity to the block. Any help would be greatly appreciated!

Qwik71442

Long 1/4” bolt water pump

70W-32

The 3/8-16 with washer and nut may hold the upper altenator bracket to the rod that attaches to the block(non A/C cars)

66-3X2 442

The short 1/4" bolt could be one that holds the oil baffle in the valley. If it has a HBW marking that's probably it.

kencpless@gmail.com

I can't find reference to the long 1/4 bolt related to the water pump in the engine assembly manual. Any idea of the location?

kencpless@gmail.com

It was from an AC car. I believe the 3/8 x 3/4 bolt is the top bolt on the starter brace and the washer and nut go elsewhere.

kencpless@gmail.com

Thanks for the thought, but a 350 didn't have a lifter baffle under the turkey tray.

joe_padavano

The quarter inch bolts are the four self-tapping screws that thread into the front cover only.

scrappie

All Guesses of course: Long 1/4"=top of water pump, 3/8 w/washer/nut=power steering bracketry? Short 1/4"=choke tube plate or intake somewhere?

kencpless@gmail.com

I know for certain that the small 1/4-20 x 1/2 bolt is for the detent cable to the transmission case.

kencpless@gmail.com

Thanks Joe & Quick71442! I dug out the old water pump and the 4th bolt was missing and this was it.