In addition to what dave said I would like to add one more comment about the intake manifold/head coolant passages. On the truck heads there are no coolant crossover openings on the front of the heads. Instead the crossover is in the intake were the exhaust crossover is on the cars. This coolant passage is much taller than the exhaust crossover on the car and a car manifold will not seal without modification to the heads or intake. This is probably the biggest deterrenat to using truck heads. Probably cheaper o just get some car heads. David Homstad <Dhomstad@xxxxxxxxx To: L-FORWARDLOOK@xxxxxxxxxxxxx ET> cc: Sent by: Forward Subject: Re: [FWDLK] Truck hemis Look Mopar Discussion List <L-FORWARDLOOK@list s.psu.edu> 11/21/01 03:42 AM Please respond to David Homstad Ray, The valves have a different stem diameter and are sodium filled, but there are modern substitutes. Sometimes the accessory bracket mounting holes are not drilled and tapped for the power steering pump and generator. The cam, distributor, front cover, oil pan, water pump housing, oil pick up, oil filter base, and intake manifold will have to be changed. A lot of trucks used front motor mounts, so make sure they are also cast on the sides of the block. However, the exhaust manifolds with the 4 bolt flange are great for improving any 331/354/392 Hemi and are sought after. Dave Homstad 56 Dodge D500 -----Original Message----- From: Forward Look Mopar Discussion List [mailto:L-FORWARDLOOK@xxxxxxxxxxxxx]On Behalf Of Angela Underwood Sent: Tuesday, November 20, 2001 9:52 PM To: L-FORWARDLOOK@xxxxxxxxxxxxx Subject: [FWDLK] hemis I need help guys. Any major differences between a 1957 2ton truck 354 hemi and a passenger car hemi? Ray |