MASSEY HARRIS 20, COLT, 22, MUSTANG, 30, 101 JR 102 JR, INTAKE/EXHAUST MANIFOLD NEW USING THE CONTINENTAL GAS MOTOR MH PART # 7416A ,,,,, THIS MOTOR WAS USED IN LOTS OF DIFFERENT EQUIPMENT MASSEY HARRIS TRACTORS, OLIVER TRACTORES, EARLY CASE V, VC TRACTORS, SILVER KING TRACTORS , LINCOLN WELDERS, ALLIS CHALMERS FORKLIFTS, RED SEAL POWER UNITS ETC.... REPLACES CONTINENTAL PART #F400E-502,,,, IT HAS A 1 1/2 INCH PIPE THREADED EXHAUST PORT ,,,,,OUT SIDE MOUNTING HOLES ARE 15 1/2 INCHES FROM CENTER OF HOLE TO CENTER OF HOLE,,,, CARB BORE IS 1,215 DIA,""""""GASKET IS INCLUDED""""""""""" NOTE BOLT HOLE SPREAD ON THE ORIGINAL CARB A TSX34 WAS 2 3/8 BUT DIFFERENT CARBS HAVE BEEN USED SO IF YOU HAVE A CARB WITH 2 1/2 OR 2 5/16 BOLT SPREAD HOLES MAY NEED TO BE OPENED UP TO GET THE SPREAD FOR YOUR CARB THEY CAN BE DRILLED/FILED OR USE A AIR GRINDER TO SLOT THE HOLES""""