These are plans for the Regal.
Heads
L32 heads fully ported by me. Spent a few days on these.
Intake & Exhaust ports. Chamber area smoothed
Then worked by machine shop
3 angle valve job.
Valve guides milled 0.100"
Heads milled less than 0.005”
Manley retainers, comp cams locks, 90 lb ls6 springs installed at 1.8”, 1.84 roller rockers.
Block
Block decked less than 0.005”
Powdered metal connecting rods.
Stock crank and cam.
Rollmaster Single roller chain.
I was going to use SpeedDaddy headers with this car, but have SLP ceramic coated one’s too.
2 inch intercooler (unknown type, core of intercooler is the same size of supercharger outlet without the H bar removed). This will be the at least intercooler setup. I may have to build one for the m112. Depends on how I adapt it to the lower intake.
I’ll be running a m112 supercharger looking for high boost level. I want to be able to easily add boost if I race and up the octane.
Question
Which pistons can I run 9.4 to 1 compression pistons or do I need to run 8.5 to 1 compression?
Should I run a cam with a different rocker ratio and if so I was looking at VS, XP, S1X with 1.7s? This car will be run almost daily on 92-93 octane.
The pistons I have: 9.4 I think are from a L26. They were in the GTP with the powdered connecting rods and appear to have low miles. Just one of the pistons is chipped and would be replaced if used. 8.5 to 1 pistons were in the regal with 205k miles on them
My Machinist has a Grand National with the 3800 and is running 11 to 1 compression, but it’s turbo’d.
Thanks in advice for your input.
