NUT-5/8"-24.B
(Sold in sets of 8pcs.)
These are the nuts we use in SVO, ARCA, and short midget heads Many buildershave used thestronger "Jumbo", or"Oversize" 5/8"-24 adjusters even in OEM heads for added strength too
2L Pinto, and most iron/ aluminum d-port 2.3L heads use our 14mm x 1.25 jam nuts.
RSI, XT, and BB7 midget heads use our taller NUT-5/8"-24.TALL.B