The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

stllookn · 08-09-2004, 01:25 AM

Go to the Mortec site and prestage.com site and read up on all the head castings. The prestage site will list the engine horsepower options with each casting number. The 882's were prone to cracking and were not only used on 150-180 hp engines. You want 1.94/1.5's or larger castings 14096217, 340292, 3782461, 3890462...too many to list...LOL! THe 487's might be better but they were also offered in 2.02/1.6 (3973487X) on the 350 hp option. I am sure the ones for $146 are the 1.94/1.5 with 76 CC chambers that were used on 165 hp engines (these had 10 cc less intake runner volume).

08-09-2004, 01:25 AM	#2
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,465	Go to the Mortec site and prestage.com site and read up on all the head castings. The prestage site will list the engine horsepower options with each casting number. The 882's were prone to cracking and were not only used on 150-180 hp engines. You want 1.94/1.5's or larger castings 14096217, 340292, 3782461, 3890462...too many to list...LOL! THe 487's might be better but they were also offered in 2.02/1.6 (3973487X) on the 350 hp option. I am sure the ones for $146 are the 1.94/1.5 with 76 CC chambers that were used on 165 hp engines (these had 10 cc less intake runner volume). __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary)