Skip to content

Free shipping Orders Over $250 Lower 48

  • Home
  • Shop
    • Categories
    • Swap Kits
    • Accessory Drive
    • Mounts Only
    • Differential
    • LS Performance Parts
    • Engine Management
    • Misc
    • All products
  • How to Guides
  • Customer Swaps
  • FAQ
  • LSe9x Youtube
  • About Lse9x
  • Contact
Lse9x
Login
Spend $250 more for FREE shipping lower 48.
FREE shipping will be applied at checkout

Your cart is empty

Continue shopping
0Cart($0.00)
  • Home
  • Shop
    • Categories
    • Swap Kits
    • Accessory Drive
    • Mounts Only
    • Differential
    • LS Performance Parts
    • Engine Management
    • Misc
    • All products
  • How to Guides
  • Customer Swaps
  • FAQ
  • LSe9x Youtube
  • About Lse9x
  • Contact
Home Shop Cylinder Heads PRC 247cc CNC Ported Cylinder Heads

PRC 247cc CNC Ported Cylinder Heads

$2,949.99 /
PRC 247cc CNC Ported Cylinder Heads
$2,949.99 /

PRC-SS247CNC

Precision Race Components all new cylinder head castings completed with 247cc runners. For 408 cubic inch and larger applications with 4.03"+ bore sizing.


MADE IN THE USA!!
CAST IN THE USA!!
MACHINED IN THE USA!!

Features: 
  • 247cc Fully CNC Ported Intake Runners
  • 84cc Fully CNC Ported Exhaust Runners
  • TSP .660 Spring Kit w/ PAC Valve Springs & Titanium Retainers
  • 68cc CNC Machined Chambers
  • CHE Bronze Guides
  • 2.120" Hollow Stem Intake Valves/ 1.600" Stainless Exhaust Valves
  • Factory Rocker Friendly!!

The all new 247cc cylinder head is finally available for customers looking for the pinnacle of LS cathedral port performance.   The new 247cc port has been flow bench tested to flow over 360cfm. 

Flow Data:

 No Exhaust Pipe

 

LIFT INTAKE FLOW  EXHAUST FLOW 
 .100"   66 CFM  57 CFM 
 .200"    147 CFM  117 CFM
 .300"    228 CFM  170 CFM
 .400"    282 CFM  206 CFM
 .500"    321 CFM  227 CFM
 .600"    343 CFM  235 CFM
 .650"    355 CFM  241 CFM
.700"     360 CFM    245 CFM  
Company
  • Refund Policy
  • Terms of Service
Customer support
How To Guides
Lse90 LLC

Sales@lse90.com
Houston Texas

American Express
Apple Pay
Bancontact
Diners Club
Discover
Google Pay
iDEAL
Mastercard
PayPal
Shop Pay
Visa

© 2025 Lse9x, All rights reserved. Powered by Shopify