Have some flattop pistons with valve reliefs cut for these for 11.00 or 11.5 cr. please and thank you. PS this will make 19 more HP Dan
What did you learn from the intake manifold comparisons? I'll be very curious to learn of your results, as it may change my plans somewhat.
OH the suspense! Come on TA stop being such a tease. Your almost as bad as the girls when I went to High School! LOL
I assuming with the 113 LSA, that engine should very street able. I am interested in this info as well. It would be nice to make good power with still running power brakes and even air conditioning
Throw 20 or so more cubes in the mix with some ported aluminums, a high lift mild hyd. roller cam to help fill the cylinders and 500 + streetable HP shouldn't be hard to get that would be close to or over 500 ft lbs of torque as well! All without a vacuum pump for the power brakes with the power range in the 2,000 to 6,500 RPM range. A bit harder to do with only 355 cubes though but still only down around 50 plus or minus on both numbers. Or for those who want more with the extra 20 cubes, a high lift solid roller that has more duration @ .050", the ported aluminum heads with more compression with the power range 3,000 to 7,500 range would be getting closer to 600 streetable HP but may need a vacuum pump for power brakes. With 355 cubes like the above solid example I would say could be closer to around 550 HP. Of coarse gear and stahl accordingly and the car would be a joy to drive on the street with either the mentioned combos. Of coarse fuel economy would vary between the 2. I say high lift roller because I like to be able to use ALL of the CFM output that I would have to pay for to get the heads ported too! The more port work the heads get usually increases flow in the higher lift, so no sense in paying to have port work done if that extra flow isn't going to be used! I like a cam that goes passed the max flow lift of the heads so the valve is opened faster to the max flow lift and hits the max flow lift as the lifter goes over the nose of the cam as the valve is closing so all that extra flow that was paid for is utilized. Harder to get the higher lift low duration with a flat tappet cam grind, the ramp would have to be to aggressive and would wear to fast. Good heads make all the difference on just about any engine!
Hopefully we’ll getting some real numbers from TA soon. Hoping to get it all together for next spring.
Keep in mind that it is very hard to get accurate torque numbers on a dyno under 3500. It’s just the nature of the testing. Real life driving is a better indication of the off idle torque.
