77 Rebuild
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Joined: Apr 2003
Posts: 83
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From: Houston Texas
77 Rebuild
I have a 1977 L82. When I bought it the engine had been "warmed over".
Being a novice at engine work I just said ok and bought the car.
Any way this 350 has been bored to a 383 and 1 cylinder is sleeved. I had some work done as I wiped a lobe on my can shaft and had to have it replaced. I don't know what cam was used.
The plan is this. I have an edelbrock air gap manifold I plan on using and heddman headers that I will be adding. I have been considering adding new performance parts.What would anyone suggest be added (roller rockers etc)
Being a novice at engine work I just said ok and bought the car.
Any way this 350 has been bored to a 383 and 1 cylinder is sleeved. I had some work done as I wiped a lobe on my can shaft and had to have it replaced. I don't know what cam was used.
The plan is this. I have an edelbrock air gap manifold I plan on using and heddman headers that I will be adding. I have been considering adding new performance parts.What would anyone suggest be added (roller rockers etc)
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
I would also consider, and this is just a suggestion, selling the intake manifold you have now and getting a set of used Vortec heads and an Ed manifold to fit them. The Vortec heads added to the changes you're making will give you considerably better flow and better compression. Pick a slightly aggressive cam and you're good to go.
Drifting
Joined: Apr 2002
Posts: 1,716
Likes: 4
From: New Baden Illinois
I would see what you have first before you start changing things. A 350 cannot be bored to a 383. When it is just bored .030 over it is a 355. In order to get a 383, it has to have a longer stroke crankshaft.
I would also see what heads you have. If someone went through the trouble of building a 383, they probably did not reuse the stock heads.
The parts on the engine have to work in connection with each other. If you just start throwing parts at it, you may hinder performance.
I would also see what heads you have. If someone went through the trouble of building a 383, they probably did not reuse the stock heads.
The parts on the engine have to work in connection with each other. If you just start throwing parts at it, you may hinder performance.
Thread Starter
Advanced
Joined: Apr 2003
Posts: 83
Likes: 0
From: Houston Texas
I would see what you have first before you start changing things. A 350 cannot be bored to a 383. When it is just bored .030 over it is a 355. In order to get a 383, it has to have a longer stroke crankshaft.
I would also see what heads you have. If someone went through the trouble of building a 383, they probably did not reuse the stock heads.
The parts on the engine have to work in connection with each other. If you just start throwing parts at it, you may hinder performance.
I would also see what heads you have. If someone went through the trouble of building a 383, they probably did not reuse the stock heads.
The parts on the engine have to work in connection with each other. If you just start throwing parts at it, you may hinder performance.
How would I tell what type of heads I have and I bought the air gap only because it was chromed. Should I pull the valve covers? Is there a data plate somewhere?
Racer
Joined: Mar 2007
Posts: 306
Likes: 0
From: New Hampshire
I am virtually positive my mechanic said it was a 383 and he knows Vettes. Currently I have an Edlebrock performer manifold, Holly carb.
How would I tell what type of heads I have and I bought the air gap only because it was chromed. Should I pull the valve covers? Is there a data plate somewhere?
How would I tell what type of heads I have and I bought the air gap only because it was chromed. Should I pull the valve covers? Is there a data plate somewhere?
Thread Starter
Advanced
Joined: Apr 2003
Posts: 83
Likes: 0
From: Houston Texas
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