For engine builders, bump compression?
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07-01-2013, 10:19 PM
Dodge Ram Forum Senior Member!
Join Date: Aug 2012
Vehicle: 2012 Hemi express quad
Trim Level: ST express
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Originally Posted by
the stock 4th gen HEMI has a 10.5:1 c/r
That makes more sense. I thought 9:4 sounded kinda low, just wasn't sure.
- 18" Magnaflow - BT catch can - 180 Tstat - 22" SRT10's - 305/45 Nitto 420 - SG 2/4 drop - blacked out heads/tinted tails - dechromed/debadged - 20% tint-
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