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Old 01-30-2021, 08:44 PM
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Default Dished Pistons?? for 455 with Ram Air Heads

Sold a set of 5C (98cc) heads. So my only spare heads now are 48s (78cc).

Spare 455+030 with 48s would be 11.1:1-11.6:1 with Flattops depending on Deck Height.

QUESTiON: Are there Affordable Dished pistons 10cc-20cc for our 455s?
Last time i bought dished pistons they were ROSS and spendy.

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Old 01-30-2021, 08:51 PM
tom s tom s is offline
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Check with Paul K on here for Autotec,I have bought 3 sets from him.Tom

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Old 01-30-2021, 09:46 PM
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Forgot to mention: For 6.7"rods. Paul k. got it thanks.

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Old 01-31-2021, 05:08 AM
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Quote:
Originally Posted by Half-Inch Stud View Post
So my only spare heads now are 48s (78cc).
Is this a typo or did you enlarge the chambers?
#48 i´ve seen has been in the 66cc range.

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Old 01-31-2021, 08:43 AM
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Quote:
Originally Posted by Kenth View Post
Is this a typo or did you enlarge the chambers?
#48 i´ve seen has been in the 66cc range.
Tulip valves and unshrouded the chamber for attached flow:enlarged.

My question about pistons should assume key parameters: Forged, affordable, 6.8" rods ( i typed 6.7" above they are 6.8")

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Old 01-31-2021, 09:34 AM
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If your not building a race motor and have no porting time in those 48 castings then instead off keeping them for coffee table displays then why not sell them off to fund getting a set of -8 6X or 5c or 7M5 heads to work with?
At least then you would be starting off with somewhere under 10.5 comp which I assume is what you want since you are posting in the street section!

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Old 01-31-2021, 10:31 AM
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my 3in main 455 9.5 CR in my garage has dead stock 48 heads with dished pistons.No issue at all.Tom

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