Ivoryk3ys78
Well-Known Member
Good Afternoon. This winter we plan on doing a stroker with one of the early 70s 360 blocks that we have.
I have already ordered the Powerport 190 heads and I am going to get the single plane intake when it arrives.
So this is the build I have planned
408
Howard Solid Flat Tappet 712712-08
599 615 Gross .018/.018 lash 1.5
254/260 @.050
282/288 ADv Intake Close 65 (I think at .020)
108 Center
PowerPort 190 heads and intake
Now when I purchase a rotating assembly unless I am thinking wrong or overlooking something because these heads are 60cc the only way to create a quench without having more then 12:1 compression is by having the heads opened up is that correct?
The reading I have been doign it looks like I can get away with around 195 cranking pressure with an aluminum head but I don't know if that can be done without a quench. So Far I have looked at ordered a flat top piston scat kit and running a thicker gasket.
A .080 4.06 gasket is giving a static compression of 11.5 and a dynamic of 9:1. This is at sea level which is pretty much right were I am.
A .080 4.18 gasket puts the static at 11.2.
So I guess I am asking what are some thougsh on quench and compression balance and what some options might be.
Thanks a lot.
I have already ordered the Powerport 190 heads and I am going to get the single plane intake when it arrives.
So this is the build I have planned
408
Howard Solid Flat Tappet 712712-08
599 615 Gross .018/.018 lash 1.5
254/260 @.050
282/288 ADv Intake Close 65 (I think at .020)
108 Center
PowerPort 190 heads and intake
Now when I purchase a rotating assembly unless I am thinking wrong or overlooking something because these heads are 60cc the only way to create a quench without having more then 12:1 compression is by having the heads opened up is that correct?
The reading I have been doign it looks like I can get away with around 195 cranking pressure with an aluminum head but I don't know if that can be done without a quench. So Far I have looked at ordered a flat top piston scat kit and running a thicker gasket.
A .080 4.06 gasket is giving a static compression of 11.5 and a dynamic of 9:1. This is at sea level which is pretty much right were I am.
A .080 4.18 gasket puts the static at 11.2.
So I guess I am asking what are some thougsh on quench and compression balance and what some options might be.
Thanks a lot.