Thompson Motosports
  Home » Catalog » Small Parts » Cylinder Heads » My Account  |  Cart Contents  |  Checkout   
Quick Find
 

Advanced Search
Categories
Engine Packages
Small Parts
  Balancers
  Nitrous
  Spark Plugs and Plug Wires
  TMS Valve covers
  Heads/Cam packages
  Internal Engine Components
  Camshafts and Valvetrain
  Cylinder Heads
    Brodix Cylinder heads
    DART Cylinder heads
  Gaskets
  Bearings and Misc.
Turn Key Engines
Big Blocks
Torque Converters
Carburetors
Intake Manifolds
ARP Fasteners
Apparel
Fuel Systems
ProCharger Kits
Specials
Information
CID & Compression Calculator
Contact Us
Shipping Information
Warranty & Return Policy
Privacy Notice
Terms & Conditions
What's New? more
Thompson Motorsports CNC Ported 317w/ pac 1218 spring
Thompson Motorsports CNC Ported 317w/ pac 1218 spring
$1,099.00
TMS CNC Ported 243/799 w/ pac 660 spring   Pin It  $1,299.00
TMS CNC Ported 243/799 w/ pac 660 spring
TMS CNC Ported 243/799 w/ pac 660 springTMS CNC Ported 243/799 w/ pac 660 spring
Click to enlarge

Thompson Motorsports CNC Ported 243/799 w/ pac 660 spring kit 

243/799 casting GM cores

PAC 660 spring kit with Titanium retainers, chromoly locators, Viton high lift seals 

GM Valves remanufactured valves (stainless steel valve upgrade available for $239.99)

CNC port intake runners

CNC port exhaust runners

Surface heads

Face intake surface and exhaust surface

True valve cover rail

Performance 5 angle valve job

Logo heads

Assemble heads

 

 CNC STAGE 1 INTAKE 235CC EXHAUST 95CC  
STOCK VALVES      
INTAKE CFM EXHAUST CFM
.100" 78 .100" 57
.200" 138 .200" 106
.300" 204 .300" 140
.400" 259 .400" 166
.500" 288 .500" 185
.600" 306 .600" 194
.650" 310 .650" 197
.700" 313 .700" 200

 

These heads have a 235CC intake runner and 95CC exhaust runner.

 

Have questions? Give us a call 972-853-2450 OR come by the office and see them at 

545 Justin Place

Nevada, TX

75173

 

These heads are performance heads, It is the purchasers responsibility to ensure that the product purchased will work with your build. We are not responsible for incorrectly ordered or installed parts.

 

***dealer and wholesale accounts available, call for details***

 **please call for rush orders**

 We make every effort to keep these motors/heads in stock, however build times can vary. So please call to verify the build time of your motor/heads.

This product was added to our catalog on Thursday 02 August, 2018.
Reviews
Shopping Cart more
0 items
Engine of the Month more
September Motor of the month
September Motor of the month
$5,500.00
Notifications more
NotificationsNotify me of updates to TMS CNC Ported 243/799 w/ pac 660 spring
Tell A Friend
 
Tell someone you know about this product.
Reviews more
Write ReviewWrite a review on this product!
Thompson Motorsports YouTube Videos
Thompson Motorsports Facebook
Thompson Motorsports Twitter Thompson Motorsports Instagram