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Author Topic:   Claimer 6in Pistons
ChityBang2
Member
posted November 25, 2003 10:30 AM
speed pro makes a cheap hyperutectic for around 219 i believe. but i think it also takes metric rings.

luke

RTR Dave
Member
posted November 26, 2003 06:36 PM
Having worked for federal mogul for two years i can say this the speed pro hypereutectic pistons are awsome> i have pounded sets of them in the eight grand range without failures>>>you"ll be happpy>


dave at rtr


jammin
Administrator
posted November 26, 2003 08:13 PM
RTR, I have also run these pistons, leaned them out dreadfully and turned the wooohoo out of them and I have never lost one. I was very satisfied with them. Can't beat them for the money.

jam


outlawstock17
Member
posted November 26, 2003 08:16 PM
me too guys......7600 and no problems....the best bargain in pistons out there.


66jj
Member
posted November 27, 2003 09:15 AM
speed pros are very strong even the cheaper not so finished ones..

I detonated some and just sanded of the little spots on the sides etc. one pin was stuck and my machinist finally broke the piston trying to get it out, he was bending his 10,000 lb press so he had to go to a bigger one, way bigger and then the piston broke.. we were both like well they are stronger than we thought!!!



racer17j
Member
posted November 27, 2003 05:01 PM
i run um too not a problem yet


stockcar5
Member
posted November 27, 2003 08:45 PM
i agree. anytime i can get 50 nights on pistons turning 7200 i am happy. and to boot they only cost 129.00

luke

Mikey14
Member
posted December 13, 2003 08:54 PM
whats the difference between the 129.00 ones and the 219.00 ones?
PN on the 129.00 ones?


stockcar5
Member
posted December 14, 2003 10:39 AM
the 129$ ones i was talking about were for a 5.7 that i put 50 nights on. i think the 6" ones can be bought new on ebay for around 169?

luke

racer17j
Member
posted December 14, 2003 11:01 AM
they bolth use the same materals but the cheaper ones are a cast claimer type piston with regular rings and the others are fully machined with narrow rings i run the cheaper ones got them off ebay with rings and a set of bearings for 125 but i don't see any of the cast ones for 6 in rods in any of my catologs


Raz_900
Member
posted December 16, 2003 02:17 PM
Keith Black makes alot of different pistons. You can get them from Summit for under $250. I just ordered a set of KB260's (6" rod, 350, lightweight for 1/16" rings) for $250. I think the standard weight and 5.7" pieces are less.

Just make sure you have a ring filer and set the top ring end gap as recommended (I run .032"). If you run 'normal' end gaps the tops of the pistons will break off.



Eljojo
Member
posted December 16, 2003 06:23 PM
Why do you think that is? You don't have to run excessive gaps on the speed-pros.


wrenchturner10
Member
posted December 17, 2003 06:46 PM
why would you want more heat on the top of the piston? wouldnt that just make detonation that more likely??

luke

Raz_900
Member
posted December 19, 2003 09:01 AM
It's actually just the opposite. The KB pistons absorb more heat and transfers it threw the top ring to the block. That's why the clearance needs raised.

I'll try and take a pic of the side of a KB piston compared to a 'regular' piston and you'll see the difference in how the ring lands are designed.

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