Any guesses as to compression/cc relief in these 351W pistons??

[Miker]

I just removed the heads from the '94 roller 351W that was in the F-350 dually thats pic'd in my gallery. Does anyone have the slightest idea what the stock compression of these heads and pistons were? Additionally, for bonus points, does anyone know what cc these heads are? Finally, does anyone know the exact -cc's that these pistons have?

I have a '69 351W with Keith Blacks with -6cc's and it was pushing 10.8-1, with the '69 351 heads. Would I be able to bring my compression down just a jag if I put the '94 heads on the '69 with Keith Blacks, if so, any guesses as to what that would make my compression be?

I'm putting trick flows on the '94 roller.

Thanks!?:?

 

[Miker]

Ooops, forgot the pics,,,,, see what you think

 

[Miker]

her's the one of the pistons

 

[Viperwolf1]

E7TE heads are 60-63 cc's before any milling. Those dishes are huge, probably 20-something cc's.

 

[mattt]

Those piston look exactly like what is in my '94 Lightning 351W F4TE block. According to what I was told by people on the Lightning board, they are 18cc dish.

I thought most stock heads were ~64cc chambers?

 

[cs_88]

I have pictures in my gallery of dished pistons in a '77 351W. I couldn't find any info on the size of the dish so I measured them using a syringe and they measured out at approx. 27cc.

'94 F350 w/5.8= 8.8:1.

 

[ryoungbronco]

I had the same pistons in my 351w that is being built. I was told that they were -22cc pistons. I also looked in an auto book that stated the same. I went with these pistons but .030 over http://www.summitracing.com/parts/UEM-IC9925-STD/ they are -11cc pistons and 58cc AFR heads which will bring me to 10.5 to 1 compression. With your -6cc pistons you will need to watch how many cc your heads are otherwise your compression might be too high especially for steel heads.