Heads questions/mill job/etc
#23
4.10 gears, that was a spin fest on the 13.7. Had liek a 2.6 60'.
I ran a 11.4 in the 1000ft on that pass. I have since at the local 1000ft track with slicks got it down to 10.0. So I have deff improved that 13.7 time just havnt got back to a 1/4 track.
I ran a 11.4 in the 1000ft on that pass. I have since at the local 1000ft track with slicks got it down to 10.0. So I have deff improved that 13.7 time just havnt got back to a 1/4 track.
#25
Originally Posted by TouchOfEvil04
lq9 is 10.1
Thats all i want really.
Thats all i want really.
I think the stock valves are fine for our power range its not worth paying to recut seats and unshroud(I did that with ferrea valves).
#27
richard @wcch told me when I was talking to him about this that these heads will net you more HP with a razor sharp valve job than with a mild port and polish.... So I am doing both
#29
I just poseted that question a few days ago, down the colum, and this what I found out: Every .006" you mill will subtract 1 cc from your chamber, so .030" would be 5 cc's milled off which would put an lq4 head at about 67-68 cc's. Using the calculator I found, milling .030" and using a .040" thinck gasket would give you your desired 10.5:1. Just do a google search for compression ratio calculator and enter in you combo. I,m doing .042-.045 off and stock head gaskets ( .054 thick) and will end up around 10.5. A good ratio to be at, I tow also. Stock gaskets are cheaper too!
#30
Richard could do a stage I job on your heads for the price range you are looking at which Im sure he could mill them too all for about the price range you are looking at. I will tell you this much, I have dealt with Richard alot with some fastners, my vic jr setup and fuel setup, he is a great guy and will bend over backwards to help you out even though he is CRAZY busy. The man gets to the shop at 530am and I have gotten him as late 615pm. I think you would be really happy with the results you get. Tdrumm got like 22hp out of a stage I job on some 5.3 heads on his 5.3 and I dont think he milled them. Imagine what you would gain with them on a bigger motor with a bigger cam and higher CR?
Here is a break down of some of the stuff he does for his stage II heads which are sweet and you can see what you could cut out of that.
http://www.proheads.com/files/SixLFlowPricing.htm
If Richard doesnt post up tonight Ill remind him tomorrow when I talk to him

Here is a break down of some of the stuff he does for his stage II heads which are sweet and you can see what you could cut out of that.
http://www.proheads.com/files/SixLFlowPricing.htm
If Richard doesnt post up tonight Ill remind him tomorrow when I talk to him



Its really not that expensive.