3.8 20 over trw forged pistons file fit rings steel mains 218/218 flat tappet TDs roller rockers stainless valves comp springs ported and polished heads and intake manifold 4,290 miles on rebuild all ARP fasteners oringed block 42 pnd inj.red double pumper fuel system adj fuel reg volt booster boost and fuel presure gage 200r built with all ARTCAR PARTS 9.5 ARTCAR convertor TA 45 turbo poished spools fast mosier axels poss ice cold air no rust very solid car good driver pm me if you have questions.