Yet another head question
#21
Senior Member
RACING JUNKIE
Join Date: Sep 2007
Posts: 4,137
Originally Posted by rabbit
Hey guys I am not gonna get mad at anyone for saying what they think would work. I asked you what would work and believe me I know that the tunnel ram is hurting it. I have a set of darts on the way today but I think they are too big for my combination. But you know how traders do things (pass from one thing to the next until you get what you are looking for). Anyway the ones I am picking up today are Darts with 64CC cumbustion chambers, 210cc intake runners, 2.05 intake valves, 1.65 ex valves and some port work and cut surfaces which I think will take the chambers down around 58-60cc. I am thinking that this is too much and will only hurt the low end performance. I am thinking I need more along the lines of smaller intake runner (around 180-190 cc) and no bigger than 2.02/1.6 valves. Does this seem right?
Ok what cam are you guys thinking would work for what I am doing here. If nothing else works out the 400 is last resort but we do have a couple sitting in my dad's garage if it comes down to it. :wink:
Thank you all again, Scott
Ok what cam are you guys thinking would work for what I am doing here. If nothing else works out the 400 is last resort but we do have a couple sitting in my dad's garage if it comes down to it. :wink:
Thank you all again, Scott
even if I didn't have a low end problem I would still run the 400. I love 400 small blocks.
#22
I second the 400. Much faster. Go with an Iron Dart head with 200 cc runners. Go with the smallest chambers you can get. An iron head is faster than aluminum all else being equal. It retains heat better. And the 400 might like that tunnel ram.
#25
Member
MASTER JOURNEYMAN
Join Date: Jan 2023
Posts: 44
Since the picture I added turndowns to them as well pointing 45* down and out. I was thinking around 60-64 cc heads were what I was needing but still wondering if there is any better than the next.
Last edited by annamarks; 07-03-2023 at 06:28 AM.