compression and heads question
compression and heads question so im picking up either a 224/224 583" lift cam or 228/228 583" lift cam both on 112 lsa, but im having a hard time choosing heads. will be from texas speed, and im stuck between the three listed below, mainly because i have no clue which of these is the best, to go stage one or two, and my other question, this will not be a blower car for a very long time so should i raise compression to increase torque? after choosing a head what should i mill them to?
Precision Race Components 5.3L Stage 2.5 Cylinder Heads Fully CNC Ported & Assembled With Stainless Steel 2.02" Intake Valves, 1.575" Exhaust Valves
Precision Race Components LS6 64cc Stage 1.0 Cylinder Heads Fully CNC Ported & Assembled With GM Factory 2.00" Intake Valves, 1.55" Exhaust Valves, & LS6 Factory Valvetrain.
Precision Race Components LS6 64cc Stage 2.5 Cylinder Heads Fully CNC Ported & Assembled With Stainless Steel 2.02" Intake Valves, 1.57" Exhaust Valves
Precision Race Components LQ9/6.0L 72c Stage 1.0 Cylinder Heads Fully CNC Ported & Assembled With GM Factory 2.00" Intake Valves, 1.55" Exhaust Valves, & LS6 Factory Valvetrain.
Precision Race Components LQ9/6.0L 72cc Stage 2.5 Cylinder Heads Fully CNC Ported & Assembled With Stainless Steel 2.02" Intake Valves, 1.57" Exhaust Valves
Precision Race Components 5.3L Stage 2.5 Cylinder Heads Fully CNC Ported & Assembled With Stainless Steel 2.02" Intake Valves, 1.575" Exhaust Valves
Precision Race Components LS6 64cc Stage 1.0 Cylinder Heads Fully CNC Ported & Assembled With GM Factory 2.00" Intake Valves, 1.55" Exhaust Valves, & LS6 Factory Valvetrain.
Precision Race Components LS6 64cc Stage 2.5 Cylinder Heads Fully CNC Ported & Assembled With Stainless Steel 2.02" Intake Valves, 1.57" Exhaust Valves
Precision Race Components LQ9/6.0L 72c Stage 1.0 Cylinder Heads Fully CNC Ported & Assembled With GM Factory 2.00" Intake Valves, 1.55" Exhaust Valves, & LS6 Factory Valvetrain.
Precision Race Components LQ9/6.0L 72cc Stage 2.5 Cylinder Heads Fully CNC Ported & Assembled With Stainless Steel 2.02" Intake Valves, 1.57" Exhaust Valves
Staging Lane
Joined: Jan 2011
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From: HoCo, Maryland
TECH Addict
Joined: Dec 2001
Posts: 2,907
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From: Bergen County, NJ
Heads, compression and Cam all work together to improve air into the cylinder, and spent gas out. The configuration of the cam, heads, and compression should be coordinated and in synch. I strongly suggest you speak to Texas Speed or someone in the know to help you "package" this mod. Throwing parts at it will not get you the best results.
