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Rhs 54503 Ls7 Heads Designed For Ls1, Ls2, Ls6 Blocks 266cc Pro Elite Cnc Ported on 2040-parts.com

US $1,500.00
Location:

Germantown, Tennessee, United States

Germantown, Tennessee, United States
RHS 54503 LS7 heads designed for LS1, LS2, LS6 blocks 266cc PRO Elite CNC ported, US $1,500.00, image 1 RHS 54503 LS7 heads designed for LS1, LS2, LS6 blocks 266cc PRO Elite CNC ported, US $1,500.00, image 2
“One of these looks to have been bolted down and CC'd or Flowed. They have not been run and do not have ever had plugs in them or have any gasket material on them.”
Brand:RHS Warranty:No Manufacturer Part Number:54503
















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Pair of (two) 54503 LS7 heads

designed for use with small bore LS1 LS2 LS6 Blocks

266cc Runner

66cc Chamber

AUCTION IS FOR BOTH HEADS

Heads are Bare and only include what is seen.

Set Up For 2.100" intake & 1.575" exhaust valves

RHS® Pro Elite™3.900" Bore LS7 CNC-Ported Cylinder Heads not only get the best LS rectangular port heads onto all GM LS 5.7L – 6.0L blocks, they also provide up to 100 bolt-on horsepower over stock and feature all the benefits of other RHS®  LS7 heads. These new Pro Elite™ cylinder fit all LS applications down to the 3.900" bore, and utilize LS7 intake manifolds. Offered in CNC and P-Port (unfinished runner) versions, the heads’ intake ports are raised .220" from the stock location for a straight line of sight into the cylinder, and utilize the LS 6-bolt head design compatible with the RHS® LS Race Block and GM LSX Block. They can also be used with OEM, 4-bolt blocks. Additionally, a .750"- thick deck surface and reinforced rocker rails make for more rigidity in high horsepower and boosted applications. RHS® Pro Elite™ 3.900" Bore LS7 CNC-Ported Cylinder Heads are designed to use eight standard, LS1-style exhaust rockers and eight offset LS3-style style intake rockers and stands. Buyers will save money, as they won’t need to order a full set of less common 1.8 ratio LS7 rockers.

  • Includes (1) bare 355-T6 aluminum CNC cylinder head

  • CNC-machined intake & exhaust runners as well as combustion chambers

  • Intake ports raised .220" from stock location for strait line of sight into the cylinders

  • FIt LS Blocks down to 3.900" bore - Perfect for 5.7-6.0L (LS1/LS6/LS2/LQ4/LQ9) block equipped applications

  • Uses (8) LS3 offset intake rockers & (8) LS1 intake or exhaust rockers OR (8) LS3 exhaust rockers over less common/more expensive LS7 rockers

  • Will work with standard 4-bolt OEM LS blocks or aftermarket 6-bolt blocks (RHS® LS Alum. Block & GMPP LSX)

  • .750" thick deck & reinforced rocker rails make heads ideal for high HP & boosted applications

  • Set-up for 2.100" intake & 1.575" exhaust valves

  • Advanced port/runner/chamber design & modified water jacket for improved durability, optimal performance & added reliability

  • Standard features include multi-angle intake & radiused exhaust valve seats for up to 5% more flow than the competition


ALREADY HAVE A FAST INTAKE? UPGRADE IT TO FIT: 
LS7 Lower Shell Here



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