which vortec heads should i get?!?
Thread Starter
Burning Brakes
Joined: Sep 2005
Posts: 832
Likes: 0
From: Sarasota Florida
which vortec heads should i get?!?
i'm looking at getting some used vortecs for my 350. i've heard about different casing, some good, some not as good. which one(s) should i look at or stay clear of?
Drifting
Joined: Nov 2005
Posts: 1,601
Likes: 4
From: Texas
The casting controversy was started by One of the Automotive
magazines... they later retracted their statement.. the 350's that
came in HD 1 ton trucks and vans had a hardened exhaust seat...
this was originally thought to hamper flow but this turned out to be
false... the 062's were the 1 ton Hardened castings... the '906 castings
were 1/2 ton heads.
10239906...96-up...350.........."Vortec 5700", "L31", 64cc chamber,170cc intake port, 1.94"/1.5" valves
12558062...98......350..........L31 Vortec, truck, 64cc chambers, 1.94/1.5, 170cc intake port
magazines... they later retracted their statement.. the 350's that
came in HD 1 ton trucks and vans had a hardened exhaust seat...
this was originally thought to hamper flow but this turned out to be
false... the 062's were the 1 ton Hardened castings... the '906 castings
were 1/2 ton heads.
10239906...96-up...350.........."Vortec 5700", "L31", 64cc chamber,170cc intake port, 1.94"/1.5" valves
12558062...98......350..........L31 Vortec, truck, 64cc chambers, 1.94/1.5, 170cc intake port
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
I heard there were only two Vortec iron head castings and both were so similar you wouldn't know the difference.
I think there are aluminum Vortecs but they would be hard to find and very expensive.
I think there are aluminum Vortecs but they would be hard to find and very expensive.
Racer
Joined: Feb 2006
Posts: 324
Likes: 0
From: South Elgin IL
Edelbrock makes aluminum vortecs (E-Tecs). They are priced similar to their other aluminum heads. But, as you say, more expensive than the GMPP iron heads you can get.
