How to get .040" quench w/ open chambers?
#2087213
06/06/16 06:31 PM
06/06/16 06:31 PM
|
Joined: Nov 2011
Posts: 2,154 Its a TRAP!
DARTH V8Я
OP
Oh No!! I just had a moron attack!
|
OP
Oh No!! I just had a moron attack!
Joined: Nov 2011
Posts: 2,154
Its a TRAP!
|
For small blocks. How is this achieved? Without going with closed chamber. This is for 10.5:1 91oct E10. Thanks.
When it takes more than a sweet mullet to prove you rule at the trailer park..
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: DARTH V8Я]
#2087214
06/06/16 06:33 PM
06/06/16 06:33 PM
|
Joined: Jan 2008
Posts: 4,255 Canada
WO23Coronet
master
|
master
Joined: Jan 2008
Posts: 4,255
Canada
|
Quench pad pistons and lots of GOOD machining and measuring. You'd have to equalize all the "open" area of the chamber (probably have to machine them) and then cut the quench pads of the Pistons to give you your .040".
Last edited by WO23Coronet; 06/06/16 06:42 PM.
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: WO23Coronet]
#2087219
06/06/16 06:37 PM
06/06/16 06:37 PM
|
Joined: Nov 2011
Posts: 2,154 Its a TRAP!
DARTH V8Я
OP
Oh No!! I just had a moron attack!
|
OP
Oh No!! I just had a moron attack!
Joined: Nov 2011
Posts: 2,154
Its a TRAP!
|
Quench pad pistons and lots of GOOD machining and measuring. Have a piston recommendation (stock stroke 360)? Who does your machining? Kens? Comp?
When it takes more than a sweet mullet to prove you rule at the trailer park..
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: DARTH V8Я]
#2087226
06/06/16 06:46 PM
06/06/16 06:46 PM
|
Joined: Nov 2011
Posts: 2,154 Its a TRAP!
DARTH V8Я
OP
Oh No!! I just had a moron attack!
|
OP
Oh No!! I just had a moron attack!
Joined: Nov 2011
Posts: 2,154
Its a TRAP!
|
Yeah, peg. Winkler's a bit of a drive.
When it takes more than a sweet mullet to prove you rule at the trailer park..
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: DARTH V8Я]
#2087251
06/06/16 07:11 PM
06/06/16 07:11 PM
|
Joined: Nov 2011
Posts: 2,154 Its a TRAP!
DARTH V8Я
OP
Oh No!! I just had a moron attack!
|
OP
Oh No!! I just had a moron attack!
Joined: Nov 2011
Posts: 2,154
Its a TRAP!
|
Yahhhhh I know MIke. I'll go see the boys at Comp 2morrow. Thanks a bunch.
When it takes more than a sweet mullet to prove you rule at the trailer park..
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: DARTH V8Я]
#2087312
06/06/16 08:49 PM
06/06/16 08:49 PM
|
Joined: Nov 2011
Posts: 2,154 Its a TRAP!
DARTH V8Я
OP
Oh No!! I just had a moron attack!
|
OP
Oh No!! I just had a moron attack!
Joined: Nov 2011
Posts: 2,154
Its a TRAP!
|
Yeah KB has the rough cut pistons. Toooo much work for this cat. I think a cam in the 108ish LS & 236ish @ .050 should be enough to get by on 91 on the street. Thanks guys.
When it takes more than a sweet mullet to prove you rule at the trailer park..
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: DARTH V8Я]
#2087357
06/06/16 10:16 PM
06/06/16 10:16 PM
|
Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
|
get some KB 372 pistons in the OS your block requires. narrow the rods to 1" for them (it says required with them). machine open chambered head recesses just enough to get em equal/level. As said carefull measureing/machining of piston plateau keeping in mind gasket choice to get the SCR range you are after for .035-.040 quench. You'd need to bore to size then mockup the 4 corners & rock the pistons & check heights plus square decking the block. Need a good machine shop that will work with you. with 91 you will need quench & 040 is the very max.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: DARTH V8Я]
#2087422
06/06/16 11:20 PM
06/06/16 11:20 PM
|
Joined: Jan 2003
Posts: 8,035 Tulsa OK
Bad340fish
master
|
master
Joined: Jan 2003
Posts: 8,035
Tulsa OK
|
It Takes some work but like said it can be done a few different ways. One I remember doing had the block decked enough to have a KB107 come out of the hole, then clearanced for the head. I did the same on my old 340 with the KB243. It required some more work for clearance because it was a 4.100 bore.
I took the easier way on this 360, KB107, Zero Deck, Edelbrock RPM heads milled a little, and a Fel Pro 1008. 11:1 91 Octane 500HP(11.16@119.5@3525lbs)
Last edited by Bad340fish; 06/06/16 11:24 PM.
68 Barracuda Formula S 340
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: DARTH V8Я]
#2087607
06/07/16 10:11 AM
06/07/16 10:11 AM
|
Joined: Nov 2011
Posts: 2,154 Its a TRAP!
DARTH V8Я
OP
Oh No!! I just had a moron attack!
|
OP
Oh No!! I just had a moron attack!
Joined: Nov 2011
Posts: 2,154
Its a TRAP!
|
Yeah I was thinking about it. The KB373 pistons @ .005 below deck, with a .040" compressed gasket should give me .040" quench. Correct?
When it takes more than a sweet mullet to prove you rule at the trailer park..
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: DARTH V8Я]
#2087684
06/07/16 12:32 PM
06/07/16 12:32 PM
|
Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
|
the quench plateau is .085" above the piston perimeter. you'd want .035-.040" between that flat and the head flat
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: DARTH V8Я]
#2087723
06/07/16 01:49 PM
06/07/16 01:49 PM
|
Joined: Jan 2003
Posts: 75,092 A Banana Republic near you.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 75,092
A Banana Republic near you.
|
Yeah KB has the rough cut pistons. Toooo much work for this cat. I think a cam in the 108ish LS & 236ish @ .050 should be enough to get by on 91 on the street. Thanks guys. Then get a set of closed chamber heads if you aren't interested in doing the job right. Getting .040 quench is not a throw it together task with as cast iron heads .
running up my post count some more .
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: JohnRR]
#2087734
06/07/16 02:05 PM
06/07/16 02:05 PM
|
Joined: Nov 2011
Posts: 2,154 Its a TRAP!
DARTH V8Я
OP
Oh No!! I just had a moron attack!
|
OP
Oh No!! I just had a moron attack!
Joined: Nov 2011
Posts: 2,154
Its a TRAP!
|
Yeah KB has the rough cut pistons. Toooo much work for this cat. I think a cam in the 108ish LS & 236ish @ .050 should be enough to get by on 91 on the street. Thanks guys. Then get a set of closed chamber heads if you aren't interested in doing the job right. Getting .040 quench is not a throw it together task with as cast iron heads . read post #2087607 Johnny-be-bad But as per usual your right.. I'll do the quench pistons the right way.
When it takes more than a sweet mullet to prove you rule at the trailer park..
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: DARTH V8Я]
#2087739
06/07/16 02:16 PM
06/07/16 02:16 PM
|
Joined: Jan 2003
Posts: 75,092 A Banana Republic near you.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 75,092
A Banana Republic near you.
|
Yeah KB has the rough cut pistons. Toooo much work for this cat. I think a cam in the 108ish LS & 236ish @ .050 should be enough to get by on 91 on the street. Thanks guys. Then get a set of closed chamber heads if you aren't interested in doing the job right. Getting .040 quench is not a throw it together task with as cast iron heads . read post #2087607 Johnny-be-bad But as per usual your right.. I'll do the quench pistons the right way. you mean this ?? Yeah I was thinking about it. The KB373 pistons @ .005 below deck, with a .040" compressed gasket should give me .040" quench. Correct? It makes no sense if you have an OPEN chamber head ????
running up my post count some more .
|
|
|
Re: How to get .040" quench w/ open chambers?
[Re: JohnRR]
#2087741
06/07/16 02:20 PM
06/07/16 02:20 PM
|
Joined: Nov 2011
Posts: 2,154 Its a TRAP!
DARTH V8Я
OP
Oh No!! I just had a moron attack!
|
OP
Oh No!! I just had a moron attack!
Joined: Nov 2011
Posts: 2,154
Its a TRAP!
|
Yeah KB has the rough cut pistons. Toooo much work for this cat. I think a cam in the 108ish LS & 236ish @ .050 should be enough to get by on 91 on the street. Thanks guys. Then get a set of closed chamber heads if you aren't interested in doing the job right. Getting .040 quench is not a throw it together task with as cast iron heads . read post #2087607 Johnny-be-bad But as per usual your right.. I'll do the quench pistons the right way. you mean this ?? Yeah I was thinking about it. The KB373 pistons @ .005 below deck, with a .040" compressed gasket should give me .040" quench. Correct? It makes no sense if you have an OPEN chamber head ???? was talking about the .085" quench pad on top of the piston. .005 below deck + .085 quench pad - .040 gasket should be .040 quench.. no?
When it takes more than a sweet mullet to prove you rule at the trailer park..
|
|
|
|
|