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View Full Version : steel head weight vs. aluminum head weight



jrkracing54
06-28-2011, 08:13 AM
I currently run a 604 crate engine and have bought a steel head limited engine and am wondering what the weight difference will be. I have to weigh more anyway with the steel head engine just not sure how much I will have to add to get my rear percentage correct. Thanks in advance for any help. John 1*

Graff Spee
06-29-2011, 12:28 AM
Pretty sure it is 40 lbs.

jrkracing54
06-29-2011, 10:30 AM
Thanks, that's kinda what I was thinking 15-20 pounds a head.

F22 RAPTOR
06-29-2011, 11:24 AM
I currently run a 604 crate engine and have bought a steel head limited engine and am wondering what the weight difference will be. I have to weigh more anyway with the steel head engine just not sure how much I will have to add to get my rear percentage correct. Thanks in advance for any help. John 1*

Depends on a couple of things. The 604 uses a factory block, most limiteds use after market blocks which are heavier than factory ones. So the heads may be just #40 heavier, but I'll wager the block is another #40 at least as well. Food for thought.

jrkracing54
06-29-2011, 06:22 PM
I'm pretty sure this engine has a bowtie block under it if that matters.

F22 RAPTOR
06-30-2011, 06:30 AM
I'm pretty sure this engine has a bowtie block under it if that matters.

yea, it matters. bowtie ways more than a 604 block.