BMW m40b181.8l 4 cyl BMW in pieces not assembled Some parts are water damage Std bore rehoned Line honed main caps $50 cost Block decked .040" for 9.5:1 comp Head: Worth $380 alone Ported inlet and exhaust, with polished exhaust Nissan pintara grind camshaft Performance Grown Cam $130 Updated springs (crow 202 springs to match cam Complete inlet runner port matched Head completely rebuilt with new guides and valves
