Max overbore for a 406CI , 509 casting ?
If .010 will do it, and the block is otherwise in good shape, you should be OK.
Going back to MR???
If .010 will do it, and the block is otherwise in good shape, you should be OK.
Going back to MR???
HSR
I have never looked for 4.165 head gaskets, I hope they have them without costing an arm and a leg.
Gonna need a .039" with .005 in the hole.
Thanks guys!
The Best of Corvette for Corvette Enthusiasts
I have never looked for 4.165 head gaskets, I hope they have them without costing an arm and a leg.
Gonna need a .039" with .005 in the hole.
Thanks guys!
I have been running off-the-shelf Fel-Pro gaskets 1014 or 1015 I think. I believe they actually measure out to a 4.190 hole. The ones I have been using have "marine" on them, I don't notice anyhting different from non marine so I don't know that it really matters in the end.
Good luck!
I have been running off-the-shelf Fel-Pro gaskets 1014 or 1015 I think. I believe they actually measure out to a 4.190 hole. The ones I have been using have "marine" on them, I don't notice anyhting different from non marine so I don't know that it really matters in the end.
Good luck!
Also, I need to revise my famous saying.
"whomever said third time is a charm,,, never did it 5 times"
bored out to 4.165,
decked to .005 in the hole,
new pistons, crank, rod and cam bearings.
and have the crank polished,
and,,,, the AFR-210's are getting a port job,,, in search of 300-CFM or more at .600 lift
Gonna be topped off with a HSR, that will use the HSR plenum and it will still be removable wtih the stock HSR bolts, and still fit under a C4 hood.
Yeah baby , yeaaah!
bored out to 4.165,
decked to .005 in the hole,
new pistons, crank, rod and cam bearings.
and have the crank polished,
and,,,, the AFR-210's are getting a port job,,, in search of 300-CFM or more at .600 lift
Gonna be topped off with a HSR, that will use the HSR plenum and it will still be removable wtih the stock HSR bolts, and still fit under a C4 hood.
Yeah baby , yeaaah!
will still be removable with the stock HSR bolts, and still fit under a C4
hood.
this aspect of the project, if you are inclined to share.
I'm sure I'm not alone in being interested.
.
this aspect of the project, if you are inclined to share.
I'm sure I'm not alone in being interested.
.
I plan on putting the plenum on a Bridgeport mill and using a vertical collet type slitting saw to cut the bottom 1" (or what ever it takes, of of the bottom off of the plenum all the way around, and will machine the bolt hole support pillars flush with the bottom too.
Then I'll weld in a new piece of 5/16 or 3/8 thick 6061 aluminum in place of the cast piece that I cut out, this piece will have all of the intake and mounting holes machined into it before hand.
Then I will take another block of aluminum, put the mouting hoels in it and either bolt or weld it to the front of the plenum for the necessary throttle body down angle.
Then polish it up and bolt it on. I will still use the existing mounting holes and wont have to grind anything off of the intake runners.
FWIW, I wont receive the HSR until Monday or Tuesday since I bought it used from a guy in Texas and probably wont post pics for another 2-3weeks.
My engine is due back at the mid to end of next week and I plan on putting it back in before I start this mod and F1 weekend I will have friends coming into town from Cali and FLA.
I have never looked for 4.165 head gaskets, I hope they have them without costing an arm and a leg.
Gonna need a .039" with .005 in the hole.
Thanks guys!
pn. 917744165
Gonna get the Marine Felpro .039, = $40






We'll see what the engine guys say on Monday
y .005-.010 deep, it is hard to say for sure












