383
#1
383
I've been thinking about rather than getting a crate engine I'm just gonna rebuild mine. It's cheaper and I can afford it much easier! I want to Make my 350 into a 383 stroker. Does anyone know about how much would it cost me to do this? Does this usually turn out well? What is everyones opinion of a 383 in a 79?
#2
RE: 383
It turns out great. I put $7000 and I can get 510hp at the flywheel. I got a 79 with a TH 350 and 4:10 rear end. It'll haul pretty damn good. There are two types of 383 kits. The one that uses a 5.7" rod (stock 350) and one with a 6" rod. The 6" rod will give you more power due to the increased stroke. You have a variety of pistons to choose from too. I am going with the 54cc cylinder heads to run on pump gas with 210 CFM intake runners. With the 6" rod, you'll need a small base circle cam. Go to http://www.summitracing.com and enter in the motor specs that you're looking for.
#6
RE: 383
If it's on a 79 350 you might want to get it off two bolt mains. Take it to a machine shop and get splay bolts machined in. Otherwise you'll have problems. But then it might just be cheaper to buy a crate. Or you could buy an old 350 with 4 bolts.
#7
RE: 383
You can use a 6" rod with a 350, but you'll need CUSTOM pistons. It'll move the wrist pin higher. The 6" rod will be needed to make 500 hp. Definately get a 4 bolt main or make it a 4 bolt with the machine shop.
http://www.chevymania.com/tech/rod.htm
http://www.chevymania.com/tech/383.htm
http://www.chevymania.com/tech/rod.htm
http://www.chevymania.com/tech/383.htm
#9
RE: 383
All 79 Car 350's. If you can get a hold of a truck motor that would be a 4 bolt main with an insainley strong GM steel crank. You can get Mildon bearing main caps. Get those if you don't want to buy a new block. Install and torque the middle ones to spec and then used their included tools to guide the machine drill for the side bolts. The angled ones are better because it distributes the stress over a larger area. Then get it lined bored so the crank will go in straight.