Sprotsman II heads
Melting Slicks
Joined: Dec 2000
Posts: 2,041
Likes: 0
From: Wichita, KS
Re: Sprotsman II heads (68 Roadster)
If the carb that you are going to use is between 600 and 750 CFM then yes the parts that you have listed will give you a good performance boost. Did you plan on installing a high performance cam too?
You are going to have a lot of work ahead of you to get the set up under a stock height hood.
You are going to have a lot of work ahead of you to get the set up under a stock height hood.
Le Mans Master
Joined: Apr 2000
Posts: 7,562
Likes: 9
From: B'Ville NY
Cruise-In III Veteran
St. Jude Donor '05
Re: Sprotsman II heads (68 Roadster)
While I was biulding my motor, my engine builder recommended the Sportman II's with my RPM cam and intake. I have about 10.25:1 compression with zero deck clearance in my SBC 355. I've been very pleased with the results :) . The Sportman II's are said to be a very economical head choice for drag racing, being able to support a 500hp SBC.
Drifting
Joined: Nov 2000
Posts: 1,361
Likes: 0
From: Honolulu Hawaii
Re: Sprotsman II heads (68 Roadster)
Based on 1/4 mi mph results, the Sportsman IIs alone netted me a 55 horsepower gain over stock fresh rebuilt smog heads. They advertise a 30-70 bolt on gain.
The RPM manifold uses the same 1205 gasket size as recommended for the Sportsman II. So the intake ports should match-up real well.
Put in a decent sized cam and you are off to the races!!!!
PS Even if you are not going to play on the strip, this combo should be real streetable too.
[Modified by nunus79, 10:42 AM 1/17/2002]
The RPM manifold uses the same 1205 gasket size as recommended for the Sportsman II. So the intake ports should match-up real well.
Put in a decent sized cam and you are off to the races!!!!
PS Even if you are not going to play on the strip, this combo should be real streetable too.
[Modified by nunus79, 10:42 AM 1/17/2002]
