Tunnel ram or no tunnel ram...
It's now a 4.390 bore Ross piston which is coated oversized for the 4.395 bore. I had the dome removed and the tops milled down to the same c/h. With internal milling and installed a heavier .185 wall pin as requested by the new owner and a rebalance at 1985grams.
It's now a 4.390 bore Ross piston which is coated oversized for the 4.395 bore. I had the dome removed and the tops milled down to the same c/h. With internal milling and installed a heavier .185 wall pin as requested by the new owner and a rebalance at 1985grams.