| |
Click on image for the lowdown. 
====
| | |
4 members (sron48, BC59, 2 invisible),
133
guests, and
5
robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,086 Posts1,056,099 Members48,434 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Apr 2006 Posts: 41 New Guy | | New Guy Joined: Apr 2006 Posts: 41 | I picked up a 305 with a turbo 350 really cheap. I discovered it has 327 heads on it! My question is , is this a good set up or should I look for some other heads? I plan on using the engine/trans in my 46 1/2 ton. I want good profomance with good MPGs. | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | 305's use heads with small valves as the larger valves will hit the cyl. walls. . You must have small valve heads or someone has ground a recess for them. You may get good performance but you won't get high performance from a 305.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Apr 2006 Posts: 41 New Guy | | New Guy Joined: Apr 2006 Posts: 41 | Thanks for the responce. I not looking for high high performance. The 305 seemed like a good choice for good gas milage and good performance. The heads are 1.72/1.50 or 1.84/1.50 valves (8795896). I see alot about 416 305 heads. I wonder if they would be a better choice? Im not looking to build a race truck and I don't want to spend alot of money | | | | | Joined: Feb 2004 Posts: 29,795 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,795 | The 305 heads with the 58CC combustion chambers can be opened up for 1.84/1.6 valves, and with a little pocket porting, you'll have good breathing and reasonable compression. There's a machine shop down in Florida that's selling heads set up that way, with guide plates and all the go-fast goodies for a very reasonable price. I don't remember the name of the place, but they advertise on E Pay all the time. The 283/327 "Power Pack" head with the pyramid-shaped casting identifier on the end of the head also has a 58CC chamber, but the valves are smaller.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Apr 2006 Posts: 41 New Guy | | New Guy Joined: Apr 2006 Posts: 41 | Thanks Jerry I am leaning towards replacing the 283/327 heads for the 416s.
John | | |
|
|
| |
