Anyone know if the Gen I PP bolts are the same as the LT1s? They should be but I need to know for sure. Looking to order the ARP PP bolt kit from Summit. Looking at p/n ARP-130-2201.

 

I dont belive they are the same. LT1s use an odd bolt that has about 3/4-1" of threadless shank then about 1/2" of threads on the end. You might want to just contact a GM dealer and buy original GM pressure plate bolts.

Jeremy

 

Thanks. Just wanted to be sure.

 

Are you suppose to replace the PP bolts if you are switchin out PP's?

 

You dont have to. Its recommended for flywheels, but not really necessary either.

 

CamaroBoy96Z28, No problem man. Good luck with your clutch swap.

Jeremy

 

Found a possible part # of 10079898 if anyone can confirm this. This was from a writeup of a guy using a LT1 F-body flywheel in a Vette with a LT4 pressure plate, so it seems like the bolts should be the same. Couldn't find the part # on Shoebox or any other online source yet.

It sucks that ARP doesn't make them.

EDIT
Confirmed the PN at Gilbert Chevrolet with a pic:

 

Excellent find. This should help anyone greatly if they need to find these bolts for whatever reason.

 

The #1 (IMHO) GM Parts vendor, Dal Slabaugh, has advised he has 24 of these on NATIONAL BACKORDER as of 9-18! Sounds like they may be on their way to being phased out.

I found a possible alternative here at McMaster-Carr (kind of a playground for all sorts of fabrication, they had an odd sized fuel safe hose I needed for the 280Z fuel tank) :

Item # 92316A630, 3/8-16 grade 8 long shoulder bolt, 9/16" socket 13/16" flange head, 1&3/4" long. I measured the stock bolts and found they were 1&5/8" long with a 1&1/8" shoulder with a 3/4" flange. I also ordered some of the flange bolts in 2&1/4" length in case I need to cut the threaded part down.

I'll update after they arrive.

EDIT
I got both sets of bolts. The 1&3/4 are about the same length as the stock ones, but the shoulder is a good bit shorter. The 2&1/4 ones have the same shoulder length but the threaded part is of course longer. Looks like it will still fit in the flywheel threaded part OK.