This is really just a prefrence, most run aluminum. From Dart, Edelbrock etc. Depends on what racing you are doing, what cam you have. Intake, Header sizing. Probably the only general information would be some with a 2.02 intake valve diameter and a 1.6 exhaust.
bolt them on their the same
nothing. but the intake will be diff.
The headers for a 350 and 305 are the same.
Not on the head gaskets.
305 heads of course, 350 heads will fit for sure and possibly 400. obviously no big block heads will fit. a 305 with 400 heads gets you a little over 352. 350 with 400 heads is a 383. add and divide
The heads of a small block Chevy 350 engine weigh approximately 50 pounds. The use of aluminum over cast iron reduces their weight slightly.
Yes They will bolt right on with out changing anything
The heads of a small block Chevy 350 engine weigh approximately 50 pounds. The use of aluminum over cast iron reduces their weight slightly.
Yes, but running a 350 cam with 305 heads is not effective,you need to run 350 heads as well. In order to benefit from a 350 cam you need something to flow that extra fuel and air, so using 350 heads along side of the 350 cam will be the cheapest and best choice. HAVE FUN!! A 350 head can physically bolt onto a 305 block. However, 350 heads can have the valves extend into the cylinder and contact the cylinder wall (even with the smaller 305 cam). The 350 cam in the 305 with stock heads will work. You wont want to use 350 heads you will lose compression due to the largers combustion chambers.
You would also have to change the intake manifold, with the heads. I feel compelled to advise you, you are going backwards in technology, thus less performance, and mileage. The newer heads flow better. However, I understand the need to get on the road cheaply, so if you use the older intake, yeah, you could do it.
You will need to have the heads for the 305 bored out to the same size as the 350. I disagree: you can use the 305 heads on the 350 block but you will increase compression as the 305 heads have a smaller combustion chamber. The critical dimension is valve clearance. If compression ratio is a critical consideration, different pistons may be available which will bring the combustion chamber back to size. the 305 is from the 3.671 inch bore family. The 350 is from the 4.00 inch bore family. All small block heads have the same bolt pattern.
Yes, and it is an upgrade worth the swap. Let me give you a tip. The 97, will have the newer vortec, 1st design. If you can use the marine version of these heads, as they are thicker castings, and will not overhead, or crack on you. This is really a move more for the high performance. Either casting will be fine for street use.