View Single Post
  #16  
Old November 18th, 2014, 05:29 AM
bigblockv6 bigblockv6 is offline
Senior Member
 
Join Date: Jan 2013
Location: Rohnert Park, ca.
Truck: 1968 KM2500
Posts: 1,325
Rep Power: 415
bigblockv6 will become famous soon enoughbigblockv6 will become famous soon enough
Default Re: Forced Induction

All Magnum heads are the same and interchangeable regardless of displacement. The biggest difference was in 1973-74 when larger diameter 12 point head bolts were used, bushings can be fitted on the heads to allow the use of smaller diameter bolts on earlier engine blocks. All gas GMC V6 engines use 14 bolts per head and that includes the 432 engine also.
Reply With Quote