[TheMonkey]

I need to get a couple starter motor bolts... parts store has several GM sizes. Anyone know what size I need? '75 455.

thx.

[RobbMc]

4-1/2" long (roughly)

Same as the "long" Chevy bolts.

The knurls will stick out the top of the starter nose and locate in c'bores in the block.

[Robert Williams]

Monkey, the stock Pontiac starter bolts are 3/8-16 x 4-3/4" in length and are knurled on the ends, this length is for the stock delco starter.

If this is the starter you are using why not buy the correct bolts from PY or Ames.

PY part number #GME-134
Ames part number #FN-403S
Ames part number for starter shims #FN-404

Some of the mini starters on the market may use different length bolts but they should be included with the starter.

How did the lower dipstick tubes i sent you work out for you?

[TheMonkey]

I have the RobbMc mini starter that uses stock bolts. Local shop has GM starter bolts that are 4 5/8. Sounds like those are the ones.

Originally Posted by Robert Williams

...
How did the lower dipstick tubes i sent you work out for you?

Bob- Worked really nicely, thanks. Motor is buttoned up tight and now I'm just bolting up the accoutrements. Tomahawk windage tray is really nice. I still have an extra lower dipstick tube that I will pass along to help someone else out when needed (unless you wanted it back?).

Thanks again.

Scott.

[Robert Williams]

Originally Posted by TheMonkey

I have the RobbMc mini starter that uses stock bolts. Local shop has GM starter bolts that are 4 5/8. Sounds like those are the ones.



Bob- Worked really nicely, thanks. Motor is buttoned up tight and now I'm just bolting up the accoutrements. Tomahawk windage tray is really nice. I still have an extra lower dipstick tube that I will pass along to help someone else out when needed (unless you wanted it back?).

Thanks again.

Scott.

No, don't want anything back, keep it or give it to the next guy, i have a box full of them. Glad everything worked out for you and good luck with the build. If you need anything else just let me know and i will try to help you out.