Discuss Do domed pistons work? on AllFordMustangs.com, the place for Mustang enthusiasts.
Welcome to our Mustang forums where Mustangers come together to hang out, discuss and enjoy their favorite Mustang hobby with fellow Mustang enthusiasts. We invite everyone to read, post, and enjoy our Mustang forum as well as the many other sections of our site.
You are currently viewing our forums as a guest. By joining our community you gain access to post topics, communicate with members, upload your photos and access many other special features. Registration is fast, simple and free so why wait, join our Mustang community today! If you have any problems with registration or your account login, please contact support.
I ordered keith black domed pistons to get my compression to 10:1 with 63 cc heads and was told they would perform poorly....any one have this problem?
1979 mustang w/302
10:1 KB pistons
GT40X turbo swirl heads w/1.7 roller rockers
comp cam 230/236 dur. 520/523 lift
parker funnel web intake
750 holley dbl. pumper
race distributor and cdi w/super coil
long tube headers & flow masters 2.5" exhaust
elec. fan-fuel pump
2500-2800 stall converter
B&M street/strip kit and mega shifter
3.73 gears w/track lock
well it depends what the compression is with the pistons you had and it all depends on what you are looking to get out of the motor, and what method of intake you use such as NA, turboed, supercharged or whatever need more out of you to make any real decisions
__________________
1989 Ford Mustang LX Notchback,5.0L 5 speed
331 Stroker wuth forged eagle rotater, Scorpion roller rockers, mahle forged pistons, AFR185s,Spec Stage 2+ Clutch,Steeda Sub Frame Connectors with Seat supports,Hurst Short Throw Shifter, Mr. Gasket Hi0-Flo 180* T-Stat,Lunati VooDoo Series cam,Trickflow upper and lower intake,BBK CAI,BBK Long Tube Headers,BBK Off-Road H-Pipe,Flowmaster 40 Series Mufflers,Aluminum Driveshaft,17" Cobra R's,10000K HID's One problem after the next !!
I ordered keith black domed pistons to get my compression to 10:1 with 63 cc heads and was told they would perform poorly....any one have this problem?
1979 mustang w/302
10:1 KB pistons
GT40X turbo swirl heads w/1.7 roller rockers
comp cam 230/236 dur. 520/523 lift
parker funnel web intake
750 holley dbl. pumper
race distributor and cdi w/super coil
long tube headers & flow masters 2.5" exhaust
elec. fan-fuel pump
2500-2800 stall converter
B&M street/strip kit and mega shifter
3.73 gears w/track lock
May I ask what was the explanation given to say they would perform poorly?
__________________
ACRONYMS:
LUK=Let Us Know, GL=Good Luck, LMK=Let Me Know, JIC=Just In Case, BTSTDTRT=Been There Seen That Done That Repaired That, YCYDYP=Your Car Your Dough Your Prerogative and the classic... DILLIGAS=Do I Look Like I Give A S***
1986 GT-X303 cam, 289 heads, 1.72, Holley 700cfm DP, RG 4+1 Trans. Whatever it Takes If it Ain't a Ford, why bother
I too would like to know why they wouldn't work? I can tell you they'd be fine, based on your parts list they'd work. You just need to be 100+% sure you have enough piston to valve clearance and that they work with the heads you have. Chances are they will, those heads are inline valves so they'd be fine.
__________________
MOOG Certified Tech. For mods and sound clips, see profile and gallery.
Member: NMRA Member: White Mustang Registry #362 Member: Fuzzy Dicer
"Do not buy pistons to get your 10:1. You'll have to go with a domed piston and they are not appropriate for your application. There are serious problems with flame propogation in a domed piston and they are only suitable in a forged piston, high RPM application IMO. To get your 10:1 you'll need to reduce the chamber on the heads to 55cc, use a .040 ish head gasket, and have a 0 dech block. This is assuming you get a piston with 6cc's in the valve reliefs. You may be able to find one with 4cc's and if you can then only take the heads to 57 cc's. "
Do domed pistons work? 
I ordered keith black domed pistons to get my compression to 10:1 with 63 cc heads and was told they would perform poorly....any one have this problem?
