WestCoast96Z28

Anybody know the size of the 4 bolts that secure each of the stock valve covers on the LT1 engine?

93LT1355

They are 3/8

MachinistOne

3/8 wrench - 1/4-20 thread

shoebox

...and for a third answer...

1/4 - 20 x 3¼"

WestCoast96Z28

Ahh..it's like a puzzle, I get a piece with each post.

Thanks guys. I just received a set of polished AL valve covers, and trying to make sure they work with the looms for the Taylor OVTC wires. If needed, I'll find some 1/4 -20 x ?? just in case the new valve covers are not stock height.

MachinistOne

LOL - Thanks.

So how many people does it take to actually install those bolts once it has taken three to state the size

WestCoast96Z28

Hopefully just one....

WestCoast96Z28

For extra credit, anybody know the height for the stock LT1 valve cover. Trying to understand how much thread engagement is design in, so I can pick the correct "new" bolt with new valve covers and OTVC looms. I'm assuming the threaded holes are blind into the heads.

MachinistOne

I can measure it tomorrow, and the depth of the hole.

WestCoast96Z28

Dude, that'll be awesome. I assume you're a machinist by trade...you guys pay so much attention to details.