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Charles_Colfax

Yet Another Head Thread

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OK, so I just picked up a 5.3 block that has been bored to 3.898 as the start of my 247/5.7 build for my Suburban

 

Seller is throwing in a set of 862 heads.

 

I also came across a set of 241 heads.

 

I know everyone talks about the vaunted 243/799 heads, so what are your thoughts on using one of the other two sets?

 

I believe the 241's use the same 2" intake valves as the 243's.

 

The 241's combustion chambers are +/- 2cc larger while the intake runners and exhaust ports are slightly shorter/smaller.

 

All of this "matters" the big time LSx guys building them for F-bodies and Vettes looking for HUGE how numbers and top end.

 

I question how much they would make a difference that would make in my Suburban build.

 

Keep in mind, the Burb is a DD and part time tow rig.

 

Sent from my moto g(6) using Tapatalk

 

 

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I'll be running stock crank, stock rods, flat top pistons, Comp trunion upgrade, Blue LS6 springs, stock rockers, new 7.4" pushrods, new Delphi lifters, a cam in the 208-214/208-214, 108-114 LSA range, shorty headers, Flex Fuel injectors, and likely a TBSS intake.

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Anyone?

And yes, I have searched.

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