Compression ratio

[IOWA LLY]

The 14mm studs require removal of a LOT of material from the block and heads..... To each there own


Sent from my iPhone using Tapatalk Pro

 

[quinton]

What's better arp 625 12mm or arp 2000 14mm studs?

14mm. Guy at socal recommends them over the 625's.

 

[quinton]

The 14mm studs require removal of a LOT of material from the block and heads..... To each there own


Sent from my iPhone using Tapatalk Pro

True. I personally will run 625's and o ring block next time I pull motor out of my truck.

 

[Frankin_truck]

Seem like alot more things involved to run 14mm heads studs. You have to get your block machines to accept 14mm head studs and special head gaskets and get your heads machined out. Do it all over again if you have to replace one of them things.

 

[Harbin_22]

I run 16.5:1 with around 85-90#'s boost from the triples. Blew headgaskets with standard H11 studs. Went to 625's and Oring heads, no problems for the last 10k miles

This is my opinion on the studs. Been working great for me

 

[95 z71]

I went with 625's and o ringed the block for this season.

 

[Muff]

DDP ran 19:1 in a 2.5 class...
I'd also spend little more time making sure bottom end was solid.
Compression=HP and increased turbo response

I've heard rumors of someone building a 20:1 dmax.. I've thought about it and putting it in my tow pig.

Any info on what HP the 19:1 unit made vs. similiar setups with standard or lower than standard compression ratios?