ABOUT 20 YEARS AGO I DROPPED A 400 PONTIAC INTO MY FULL SIZED '73 CHEV, CREW CAB. BUT, OF COURSE, I DID MINE DIFFERENT THAN IS SHOWN IN THIS SERIES OF PIX. NO, I'M NOT SAYING MY ROUGHT WAS BETER - JUST DIFFERENT.
I STARTED WITH THE 400-PONTIAC ENGINE AND T-400 TRANSMISSION BOLTED TOGETHER AND BOLTED SOLID AT THE EXISTING TRANSMISSION CROSS MEMBER. THE COMPLETE ASSEMBLY WAS STILL HANGING (AT THE FRONT) FROM THE CHERRY PICKER. I WAS THEN ABLE TO ADJUST THE ENGINE SLIGHTLY IF NEED BE. I THEN DRILLED A 3/8 THICK PIECE OF PLATE STEEL TO MATCH THE 3 CHEVY-FRAME BOLT HOLES, BOLTED THE PLATE TO THE FRAME. I LOWERED THE ENGINE AND MARKED / DRILLED THE RUBBER PONTIAC ENGINE MOUNT HOLES. SINCH THE PONTIAC ENGINE MOUNTS / HOLES WERE LOCATED AFT OF THE CHEV FRAME CROSS MEMBER, EVERY THING CLEARED INCLUDING THE GTO HEADERS.
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