Description
The pushrod is a very important and often overlooked component in any high horsepower build. It doesn’t have to do a much, just transmit lift from the lifter to the rocker arm, and bend or deflect as little as possible. Reducing mass in an engine is almost always a good thing however there are a few places, in order to work correctly under high stress, that requires a super rigid part. The problem is that more rigidity almost always means more mass. In these applications that require a super rigid part, pushrods, rods, wrist pins etc., to reduce mass would be to get a part that either doesn’t live long, or a part that reduces performance.
FITS
- 2001-04 GM LB7
- 2004.5-05 GM LLY
- 2006-07 GM LBZ
- 2007.5-10 GM LMM
Now here is where the rubber meets the road. Factory pushods are rated at 1794 lbs, Brandx 1982 lbs. Hamilton 3/8″ 2064 and Hamilton 7/16″ 4035. over 500rearwheel horsepower you at least need the 3/8 .095 wall over 630Rwhp you really need to jump to the 7/16″ .120″ wall. If you don’t the pushrod deflects first then opens the valve. It delays the valve opening which reduces spool and power. If you are a low budget street racer you will not notice much difference in spoolup or major power but if you are racing or sled pulling and want to make sure you don’t snuff that big charger at the big end, use a better pushrod to open the exhaust on time at full power and full cylinder pressure. It will help the chargers stay lit by not retarding the exh opening.
Category: Performance Diesel > Chevy / GMC > 2001-2004 6.6L LB7 Duramax, Performance Diesel > Chevy / GMC > 2004.5-2005 6.6L LLY Duramax, Performance Diesel > Chevy / GMC > 2006-2007 6.6L LBZ Duramax, Performance Diesel > Chevy / GMC > 2007.5-2010 6.6L LMM Duramax, Performance Diesel > Chevy / GMC, Performance Diesel > Parts > Engine & Cooling, Performance Diesel > Chevy / GMC > 2007.5-2010 6.6L LMM Duramax > Engine & Cooling, Performance Diesel > Chevy / GMC > 2006-2007 6.6L LBZ Duramax > Engine & Cooling, Performance Diesel > Chevy / GMC > 2004.5-2005 6.6L LLY Duramax > Engine & Cooling, Performance Diesel > Chevy / GMC > 2001-2004 6.6L LB7 Duramax > Engine & Cooling, Performance Diesel > Parts > Engine & Cooling > Engine Components, Performance Diesel > Chevy / GMC > 2007.5-2010 6.6L LMM Duramax > Engine & Cooling > Engine Components, Performance Diesel > Chevy / GMC > 2006-2007 6.6L LBZ Duramax > Engine & Cooling > Engine Components, Performance Diesel > Chevy / GMC > 2004.5-2005 6.6L LLY Duramax > Engine & Cooling > Engine Components, Performance Diesel > Chevy / GMC > 2001-2004 6.6L LB7 Duramax > Engine & Cooling > Engine Components, Performance Diesel > Parts > Engine & Cooling > Performance Parts, Performance Diesel > Chevy / GMC > 2007.5-2010 6.6L LMM Duramax > Engine & Cooling > Performance Parts, Performance Diesel > Chevy / GMC > 2006-2007 6.6L LBZ Duramax > Engine & Cooling > Performance Parts, Performance Diesel > Chevy / GMC > 2004.5-2005 6.6L LLY Duramax > Engine & Cooling > Performance Parts, Performance Diesel > Chevy / GMC > 2001-2004 6.6L LB7 Duramax > Engine & Cooling > Performance Parts
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