Breathing new life into the 318 in the Scamp!
Thanks for reading. I'm hoping that this idea can give insight to a relatively simple way of gaining some torque and hp as well as fuel economy from a basic 318.
I forgot to mention the specifics of the manifolds and exhaust that is being used.
The exhaust manifolds that I am using are easy '70's dodge truck 360 manifolds into typical full, dual 2 1/4" pipes with turbo mufflers.
The reason I was interested in the manifolds is because they have a 2 1/8" outlet, which is far superior over the smaller, factory units and they don't rise on the drivers side at all, keeping the spark plug changing super easy and lifespan of the wires up. They are a rear dump and with some mild grinding on the casting and on the power steering pump body housing and remove the rear exhaust stud to replace it with a bolt, you can gain enough clearance to run them nicely with power steering, which is what I am doing. If you are running manual steering, they should clear, no problem.
They are also far more widely available than 340 manifolds and cost significantly less. They do require modifying the head pipes of the exhaust to go further back.
The similarities that I discovered were very surprising, but I'm almost certain that the Weiand 8022 Stealth and 8007 Action Plus (spread bore) are just Holley's answer to Edelbrock's LD series manifolds.
The two shown are the LD4B and 8007 (pre action plus logo) and are even more similar, internally than they look on the outside. The reason I didn't use this Weiand is because this one measured slightly off compared to the 318 runners, by about 1/8" in height increase at the ports.
Allegedly, the new 8022/8007 made by Weiand/Holley measures out as a 318 port size, according to the numbers given on Summit Racing (1.96x1.00), who sells them.
I could have gasket matched the '302 heads with the weiand and not lost a terrible amount of flow or hit too much turbulence, but the Weiand I have doesn't stack up to the measurements that I got from Summit and this LD4B was the same port size when I measured it.
Thanks, mopardude318. I'm also looking forward to what this wacky carburetor is going to do.
[ame="https://www.youtube.com/watch?v=IHWJpZCmUAk"]Street Demon - Chuck's Garage - YouTube[/ame]
Thanks, bomber. I turned down two of them in my searches because they were ported. Honestly, I think the casting of the Weiand is a little cleaner, but it's all in the sizes and I couldn't compete with factory numbers against the same!
I also managed to find an LD340 from a friend that I think I'll keep for a 360 build with some 308 heads later. :)
Thanks for reading. I'm hoping that this idea can give insight to a relatively simple way of gaining some torque and hp as well as fuel economy from a basic 318.
I forgot to mention the specifics of the manifolds and exhaust that is being used.
The exhaust manifolds that I am using are easy '70's dodge truck 360 manifolds into typical full, dual 2 1/4" pipes with turbo mufflers.
The reason I was interested in the manifolds is because they have a 2 1/8" outlet, which is far superior over the smaller, factory units and they don't rise on the drivers side at all, keeping the spark plug changing super easy and lifespan of the wires up. They are a rear dump and with some mild grinding on the casting and on the power steering pump body housing and remove the rear exhaust stud to replace it with a bolt, you can gain enough clearance to run them nicely with power steering, which is what I am doing. If you are running manual steering, they should clear, no problem.
They are also far more widely available than 340 manifolds and cost significantly less. They do require modifying the head pipes of the exhaust to go further back.
The similarities that I discovered were very surprising, but I'm almost certain that the Weiand 8022 Stealth and 8007 Action Plus (spread bore) are just Holley's answer to Edelbrock's LD series manifolds.
The two shown are the LD4B and 8007 (pre action plus logo) and are even more similar, internally than they look on the outside. The reason I didn't use this Weiand is because this one measured slightly off compared to the 318 runners, by about 1/8" in height increase at the ports.
Allegedly, the new 8022/8007 made by Weiand/Holley measures out as a 318 port size, according to the numbers given on Summit Racing (1.96x1.00), who sells them.
I could have gasket matched the '302 heads with the weiand and not lost a terrible amount of flow or hit too much turbulence, but the Weiand I have doesn't stack up to the measurements that I got from Summit and this LD4B was the same port size when I measured it.
Thanks, mopardude318. I'm also looking forward to what this wacky carburetor is going to do.
[ame="https://www.youtube.com/watch?v=IHWJpZCmUAk"]Street Demon - Chuck's Garage - YouTube[/ame]
Thanks, bomber. I turned down two of them in my searches because they were ported. Honestly, I think the casting of the Weiand is a little cleaner, but it's all in the sizes and I couldn't compete with factory numbers against the same!
I also managed to find an LD340 from a friend that I think I'll keep for a 360 build with some 308 heads later. :)
