What size headers for this setup. I keep heaaring mixed things.
What size headers for this setup. I keep heaaring mixed things. It is a D1SC procharged 370 with for now stock 317 castings. I will go to an aftermarket head this winter. Has a good size blower cam from EPP. I dont mind giving up some low end as I have a stall over 3k and I will have plenty of pwoer down low as it is. I am looking for reduced 1/4 mile ET's more then low end torque. Its not a truck, I have one of those! lol Now I have considered straight 1 7/8's, but then started hearing good things about stepped headers. When I looked into it most were saying the 1 7/8 stepped to 2" was only good for 400+ cube builds. Now I am building my motor to max out the D1SC and put down over 700 to the tires, and quite possibly drop a 100-150 shot of spray on top of this with race fuel at the track. I need a header that will be able to keep up with this and I am thinking the 1 7/8 stepped to 2" would be needed to keep up with this kind of flow. Then I read a reputable member on here say he was going with 1 3/4 stepped to 1 7/8 on a 42x cube motor he was building and he referenced an article explaining why it would be better. Now I am even more confused!
Any help would be greatly appreciated, thank you!
Any help would be greatly appreciated, thank you!
I think I am just gonna go buy some kooks straight 1 7/8 headers tomm as I found a place with them in stock near me. I dont think the 1 3/4 will keep up, and everyone keeps saying the stepped to 2" should only be used on 400+ cube motors so I guess these are my best bet.
It is a D1SC procharged 370 with for now stock 317 castings. I will go to an aftermarket head this winter. Has a good size blower cam from EPP. I dont mind giving up some low end as I have a stall over 3k and I will have plenty of pwoer down low as it is. I am looking for reduced 1/4 mile ET's more then low end torque. Its not a truck, I have one of those! lol Now I have considered straight 1 7/8's, but then started hearing good things about stepped headers. When I looked into it most were saying the 1 7/8 stepped to 2" was only good for 400+ cube builds. Now I am building my motor to max out the D1SC and put down over 700 to the tires, and quite possibly drop a 100-150 shot of spray on top of this with race fuel at the track. I need a header that will be able to keep up with this and I am thinking the 1 7/8 stepped to 2" would be needed to keep up with this kind of flow. Then I read a reputable member on here say he was going with 1 3/4 stepped to 1 7/8 on a 42x cube motor he was building and he referenced an article explaining why it would be better. Now I am even more confused!
Any help would be greatly appreciated, thank you!
Any help would be greatly appreciated, thank you!
