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View Poll Results: .031" Dykes or .043" Rings ?
.031" Dykes 41 33.88%
.043" .155" radial moly ring with lateral gas ports 39 32.23%
.043" .134" radial moly ring with lateral gas ports 31 25.62%
Other, Make suggestion 10 8.26%
Voters: 121. You may not vote on this poll

 
 
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Old 04-24-2009, 07:03 PM   #1
trmnatr
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Default .031" Dykes or .043" Rings ?

Gonna put new lighter pistons in the 331 (327) , I know im gonna go with a 3mm oil ring. I know im gonna go with a .043" napier second ring

Here the thing, Should i go with an .031" Pressure Back Dykes Top Ring or an .043" .155" radial ring with lateral gas ports ?

Engine Combo..........
- 4.030" bore GM block, filled with Hardblok, Milodon Splayed Main Caps with Milodon Main Studs, using ARP head studs too
-Bryant billet 4340 3.26" stroke 40 pound crankshaft , 350 main size with 2" rod pin and big block chevy snout
-GRP aluminum rods 478grams 349grams big end 129grams beam end , ARP 3/8" 8740 rod bolts
-Crane Solid Roller Cam 308/314 @.020" 278/284 @.050" 200/206 @.200" .670"/.670" 106 lobe seperation, Mikronite processed, 1-8-7-2-6-5-4-3 (4/7 & 2/3 firing order swap)
-Shaft Rockers with 5/8" shaft
-Jesel Belt Drive

Pistons will be 2618, They will be lightweight plus they will have some work done to them by Rebco Machine to lighten them up

Here are my options on rings, give me your opinions
1) .031" Dykes
2) .043" .155" radial moly ring with gas ports
3) .043" .134" radial AP ring with gas ports
4) Other, make suggestion

Piston weight should be around 400grams plus wrist pin which should be around 95grams. Pistons will use a pretty good dome size due to 62cc heads and .040" quench

Last edited by trmnatr; 04-24-2009 at 07:07 PM.
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