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i have a set of 3100 3400 roller rockers. i am selling them on ebay and a guy asked me if the trhead was 8mm or 10mm anyone know off the top of their head what the thread is on em?
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1996 Beretta
3100 SFI TURBO
T28 60 Trim Turbo at 9psi, Stage 1 turbo cam mms, lifter upgrade springs mms, P&P heads, ls6 Valve Springs, Ported exhaust manifolds, Hyperuetectic pistons SP, 3.29 trani, MSD 8.5 wires, open exhaust, Pulstar plugs, 3400 intake manifolds, ported TB, 36 lb/hr injectors, RCI Fuel cell, Walbro 255 pump, A/C Bypass, and much more.
13.1 @ 103 mph best in the 1/4 mile -
It depends on the year. Older 3x00 rockers had M10 studs while the newer heads used M8. I can't exactly remember when the change happened. It would be far quicker just to measure them or see if they fit an 8mm socket/crescent wrench.1995 Grand Am SE
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