Our line boring capabilities are numerous, from installing splaved main caps to cutting housing bores oversize to accept bearing spacers to converting Babbit over to shell bearing recutting thrust surfaces, fitting main caps from other blocks, cutting blocks to accept rear main seals that had none, align boring keeps the main centerline as close to stock dimensions as possible by offsetting the bulk of material removed from the main cap side, we have done v12 Packard to straight eight Rolls Royce to high powered Donovan blocks, sizes from 1.000 to 6.000