Thread: Best cast piston brand ???

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What does everybody recommend for cast or hypereutectic pistons ?
I need a flat top piston for a 350 chevy with only 2 valve reliefs on one side . Not the typical 4 valve reliefs that you normally see on a cast flat top.

Keith Black.

4 valve relief pistons are for 2 valve pistons. Don't ask my why they have the extra valve reliefs, but you'll be hard pressed to find a 4 valve 350.

http://kb-silvolite.com/performance....tails&P_id=156

KB's are a pain. Take the ring end gap extremely seriously. If not enough gap - you will be buying a new engine. KB's have high silicone content and move heat better. If your motor is just stock, stick with OEM cast. KB's are still cast, just high silicone. I'm not kidding about the ring end gap, if it's not enough, and the compression ring butts, you'll be picking pieces of pistons, and rings out of your heads, and oil pan, if you don't throw a rod through the block.

The Plymouth Prowler uses KB's - I've seen those fail - ELD Performance pulled a set of them out of a Prowler V6 that got too hot and butted the compression rings. I trashed my motor with a set a KB's dont' really know what they're good for excpet taking your money. Go with an OEM cast if you're gonna stick with cast. Don't forget to get your crank balanced, because you are changing the weight of the rotating assembly. One ounce (28 grams) out of balance at 4000 RPM is equal to 24 pounds of out of balance.

I just put aluminum forged 6 inch rods in my 350 and lightened the entire rotating assembly by about 5 pounds.

I'm running forged aluminum pistons.

Originally posted by gpzilla
KB's are a pain. Take the ring end gap extremely seriously. If not enough gap - you will be buying a new engine. KB's have high silicone content and move heat better. If your motor is just stock, stick with OEM cast. KB's are still cast, just high silicone. I'm not kidding about the ring end gap, if it's not enough, and the compression ring butts, you'll be picking pieces of pistons, and rings out of your heads, and oil pan, if you don't throw a rod through the block.

The Plymouth Prowler uses KB's - I've seen those fail - ELD Performance pulled a set of them out of a Prowler V6 that got too hot and butted the compression rings. I trashed my motor with a set a KB's dont' really know what they're good for excpet taking your money. Go with an OEM cast if you're gonna stick with cast. Don't forget to get your crank balanced, because you are changing the weight of the rotating assembly. One ounce (28 grams) out of balance at 4000 RPM is equal to 24 pounds of out of balance.

I just put aluminum forged 6 inch rods in my 350 and lightened the entire rotating assembly by about 5 pounds.

I'm running forged aluminum pistons.

SOUNDS TO ME LIKE SOMEONE DID NOT FILE FIT, FILE FIT PISTON RINGS.

Originally posted by erik erikson
SOUNDS TO ME LIKE SOMEONE DID NOT FILE FIT, FILE FIT PISTON RINGS.

Exactly

thanks for the replies on this one guys.

I ran the pi$$ outta a set of Silvolites in my Chevelle with a 4 speed n 4.88 gears with constant 6500 rpm launches and never had a problem.
Cheap n good. Hg