zhandfull
Well-Known Member
I have a standard bore 340 4 bolt main X block in the garage with 4" stroker crank and some low compression pistons for boosted applications. Don't remember what the compression ratio was but I'm thinking it calculated up to about 7.5 or 8 to 1.
Also have some early Indy 360-1 heads fully CNC ported by Indy when bought
TTI 1-7/8 W2 headers
I'm thinking of doing something with these parts that have been sitting for a couple years.
Wondering how much bore the X block will take? Thinking about that 4.25 stroke small block crank and wondering what kind of cubic inches I could get.
Of course my ideal car would be like Silvia's Valiant with a 500ci small block running 10.00 on a bad air day. Don't have that kind of budget or talent to build a car of that quality.
With that said I would be interested in hearing from the more seasoned builders what kinds of budget conscious builds you could dream up. I would be looking to run close to that 10.00 goal in a car that will be street driven a 2,000 miles a year and bracket raced 5 to 10 events a year. Engine will have to overcome some chassis short comings as the car has to be drive able on the street.
My guidelines for a naturally aspirated engine most likely would be as follows.
1. hydraulic roller cam (my thought is for low maintenance)
2. 11.0 to 1 compression ( Run on pump gas aluminum heads)
3. To use my current X block and 360-1 heads
4. I'm guessing at minimum I would need to purchase cam, lifters, pistons, for a naturally aspirated build.
5. Might consider adding 4.25 crank and new rods if there would be enough benefits to justify the addition cost
Can a 10.00 ET engine be built for a less than efficient street car chassis like this? I realize it is going to take a little extra power. I would be open to adding a little NOS to get it done if necessary but only in small shots like 100hp or so.
Also would consider a boosted type build using parts I have. I'm thinking a turbo blow through or a paxton/vortex style supercharger. Trying to keep a flat hood. But thinking the cost would probably kill this ideal. Although I could probably do the fabrication and pluming if I could come up with a proven combination.
Just thinking and maybe dreaming here a little any thoughts? Lets just say the motor is for my Dart 3,300 pounds, 4.10 gears 90/10 shocks in front and 275/60/15 drag radials in the rear.
Also have some early Indy 360-1 heads fully CNC ported by Indy when bought
TTI 1-7/8 W2 headers
I'm thinking of doing something with these parts that have been sitting for a couple years.
Wondering how much bore the X block will take? Thinking about that 4.25 stroke small block crank and wondering what kind of cubic inches I could get.
Of course my ideal car would be like Silvia's Valiant with a 500ci small block running 10.00 on a bad air day. Don't have that kind of budget or talent to build a car of that quality.
With that said I would be interested in hearing from the more seasoned builders what kinds of budget conscious builds you could dream up. I would be looking to run close to that 10.00 goal in a car that will be street driven a 2,000 miles a year and bracket raced 5 to 10 events a year. Engine will have to overcome some chassis short comings as the car has to be drive able on the street.
My guidelines for a naturally aspirated engine most likely would be as follows.
1. hydraulic roller cam (my thought is for low maintenance)
2. 11.0 to 1 compression ( Run on pump gas aluminum heads)
3. To use my current X block and 360-1 heads
4. I'm guessing at minimum I would need to purchase cam, lifters, pistons, for a naturally aspirated build.
5. Might consider adding 4.25 crank and new rods if there would be enough benefits to justify the addition cost
Can a 10.00 ET engine be built for a less than efficient street car chassis like this? I realize it is going to take a little extra power. I would be open to adding a little NOS to get it done if necessary but only in small shots like 100hp or so.
Also would consider a boosted type build using parts I have. I'm thinking a turbo blow through or a paxton/vortex style supercharger. Trying to keep a flat hood. But thinking the cost would probably kill this ideal. Although I could probably do the fabrication and pluming if I could come up with a proven combination.
Just thinking and maybe dreaming here a little any thoughts? Lets just say the motor is for my Dart 3,300 pounds, 4.10 gears 90/10 shocks in front and 275/60/15 drag radials in the rear.
