cawcislo
Well-Known Member
I've been tearing down a 360 block recently for a future 408 build. I've been trying to put a combo together (see below) First some info on what the car's intended use is and engine/drivetrain combo.
Mostly street use (but not a daily driver) have fun with it, some drag racing a couple times a year, maybe try an autocross event every so often.
Car is a 70 Duster, going to have 3.73 gears (have 3.21's in it now), 4 speed car. Potential Engine combo, Scat rotating assembly (cast crank, forged rods, forged pistons) with compression at aprox 10.5:1, trick flow heads, dual plane air gap intake, dougs headers, 750 holley.
For an off the shelf grind I was looking at the smallest Lunati Voodoo 235/243 @0.50, .525/.546 lift, 110LSA or Hughes second smallest cam 238/242 @0.50, .558/.564 lift 108 LSA, or the smallest Howards cam 238/238 @0.50, .558/.558 lift 108 LSA.
All three look rather similar, I have heard some say custom grind. Staying with a similar duration cam what would a custom grind offer compared to the above (higher lift, more agressive ramp (and do I want that with a solid flat tappet cam)?
Should I be looking for more lift (and can you do that without increasing duration) or will that just compromise street use for the car? The trick flows can handle up to .650 lift, should I be trying to take advantage of that capability?
I'm not after every last HP, but I would like a solid performing combination.
Mostly street use (but not a daily driver) have fun with it, some drag racing a couple times a year, maybe try an autocross event every so often.
Car is a 70 Duster, going to have 3.73 gears (have 3.21's in it now), 4 speed car. Potential Engine combo, Scat rotating assembly (cast crank, forged rods, forged pistons) with compression at aprox 10.5:1, trick flow heads, dual plane air gap intake, dougs headers, 750 holley.
For an off the shelf grind I was looking at the smallest Lunati Voodoo 235/243 @0.50, .525/.546 lift, 110LSA or Hughes second smallest cam 238/242 @0.50, .558/.564 lift 108 LSA, or the smallest Howards cam 238/238 @0.50, .558/.558 lift 108 LSA.
All three look rather similar, I have heard some say custom grind. Staying with a similar duration cam what would a custom grind offer compared to the above (higher lift, more agressive ramp (and do I want that with a solid flat tappet cam)?
Should I be looking for more lift (and can you do that without increasing duration) or will that just compromise street use for the car? The trick flows can handle up to .650 lift, should I be trying to take advantage of that capability?
I'm not after every last HP, but I would like a solid performing combination.