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old post that i put up on the us forums a while back, should have thought to post it here...

well since i had crap luck finding a proper part number for arp bits i had to go out and do some research on my own.

heres what ive found and is aplicable to the rb20/25/26 unless noted.

head studs:

rb20/25 202-4301

rb26 202-4207

rod bolts:

z32 dohc vg30 bolts were reported to work on the rb25/26 but will not work on the rb20 (rod bolts are too long for rod, verify length of rb25/26 botls)

pn for z32 rod bolts 202-6004

use sr20 bolts, may need slight trimming 202-6005 x2 (2 sets req'd if using kit)

or alternatively order (rod bolts and nuts respectively)

12x ar3.67-1

12x n502

rb20 rod bolts ONLY : 202-6003 (l24 late,l26,l28 rod bolts)

main studs:

this is from my measurements of my stock bolts and my block

rb20/25/26 except rb30, again verify lengths and sizes.

3x am4.600-1lb

11x am4.125-1lb

14x 200-8519

14x 300-8344

any arp distributor can order these part numbers, so you shouldnt have a problem...

carl

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https://www.sau.com.au/forums/topic/130733-arp-part-numbers-for-mainsrodshead/
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