so i am trying to figure out the size of the 8 pressure plate to flywheel bolts, does anyone know what size/length they are? grade? also i can reuse my flexplate bolts to mount my new flywheel, right?

b.t.w. i am doing a 47re to nv4500 swap in a '98 12 valve.

 

Not 100% sure on this one....the flywheel is much thicker than the flexplate....I would assume longer bolts....bump to the top

 

yes im doing the same and im also looking for the 8 bolts in the manual it just says 5/16 or 3/8 bolts but that doesnt help

 

5/16 3/4 in long grade 5 or 8

 

so that's the size for the pressure plate bolts
what about reusing the flexplate bolts to mount the flywheel? thanks blackcloud.

 

yes thats the size for the presure plate to flywheel bolts and im not sure if the other bolts would work they might i just finished my nv4500 swap from the 47re let me know if you run into any problems

chris

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and as for mounting the flywheel with the flex plate bolts the flywheel is thicker i would advise getting the flywheel bolts thats the route i took, also the torque specs are 101 ftlbs for those bolts so like 100 hahaha i have all the specs still fresh in my head if ya need anything did you cut your hole yet? i have a few tricksd for that as well

 

i dont think i would reuse any flexplate/flywheel bolt. theyare stretch bolts are they not?

 

shifter hole in the floor? not yet what do you suggest for that? it seems straight forward but i have heard of a lot of guys having to patch it because they over cut.... ill take all the advise you can give me

 

the flex plate bolts are definitely too short. u really should use grade 8 bolts in the pressure plate.