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DART MACHINERY

Dart Pro 1 LS Gen III CNC Aluminum Cylinder Head 11071143 - 250cc Cathedral Port, Assembled

PART NUMBER:
11071143
MPN:
11071143
Availability:
Ships from manufacturer
Shipping:
Free over $98 in U.S. 48
Type:
Cathedral Port Cylinder Heads - Assembled
Material:
RMR Cast Aluminum
Assembled:
Yes
CNC Ported:
Yes
Bolts Per Cylinder:
4
Valve Angle (degrees):
15
Valve Springs Included:
Yes
Valve Spring Type:
Dual Spring
Valve Spring Max Lift (in.):
0.650
Intake Runner Volume (cc):
250
Chamber Volume (cc):
68
Intake Valve (in.):
2.080
Exhaust Valve (in.):
1.600
Accessory Holes:
Yes
Quantity:
Sold Individually
  • Dart Pro 1 LS Gen III CNC Aluminum Cylinder Head 11071143 - 250cc Cathedral Port, Assembled
  • Dart Pro 1 LS Gen III CNC Aluminum Cylinder Head 11071143 - 250cc Cathedral Port, Assembled
  • Dart Pro 1 LS Gen III CNC Aluminum Cylinder Head 11071143 - 250cc Cathedral Port, Assembled
  • Dart Pro 1 LS Gen III CNC Aluminum Cylinder Head 11071143 - 250cc Cathedral Port, Assembled
  • Dart Pro 1 LS Gen III CNC Aluminum Cylinder Head 11071143 - 250cc Cathedral Port, Assembled
$2,271.37

Description

Dart Pro 1 LS Gen III CNC Aluminum Cylinder Head 11071143 - 250cc Cathedral Port, Assembled

Recommended for engines with 4.000” bore or larger. Maximum competition, competition modified drag racing, circle track. Over 7,000 RPM.
Dart’s PRO1 LS 15° 250cc CNC ported Aluminum cathedral port cylinder heads for GM LS series small block V8 engines take performance to the next level. This LS CNC cathedral port head is machined on a dedicated casting with extra thick sections to maintain the proper wall thickness after porting. Due to the large diameter intake valves, the Dart LS CNC head is recommended for use on engines with 4.000 inch and larger cylinder bores. Precise computer controlled CNC machining, multi-angle intake seats, and radiused exhaust seats enhance airflow. Extra material above the ports accommodates valve train upgrades.

Features

  • Assembled with 1.295" Dual Valve Springs for Hydraulic Roller
  • Precise Computer Controlled CNC Machining
  • Multi-angle intake seats
  • Radiused Exhaust Seats
  • Accessory Holes

*Tech Sheet Located in Picture Section

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Warranty Information

Dart Machinery, Ltd. warrants to the original purchaser its products to be free from defects in materials and workmanship under normal and recommended use and that the products will conform to Dart’s published specifications or, if applicable, Buyer’s specifications to the extent accepted by Dart in a separate writing. Dart’s obligation under this warranty shall be limited to repair or replacement, at Dart’s option, of any parts or products which may prove defective under normal use within six (6) months from the date of sale, and which the examination of Dart Machinery, Ltd. reveals to its satisfaction that the products in question are in fact defective. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR USE AND OF ALL OTHER OBLIGATIONS OR LIABILITIES ON THE PART OF DART MACHINERY, LTD. THE PURCHASER ACKNOWLEDGES THAT HE IS NOT RELYING ON DART MACHINERY, LTD.’S SKILL OR JUDGMENT TO SELECT OR FURNISH GOODS SUITABLE FOR ANY PARTICULAR PURPOSE AND THAT THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF. THE WARRANTY CONTAINED HEREIN SHALL NOT APPLY TO ANY PART OR PRODUCT WHICH HAS BEEN SUBJECT TO ACCIDENT, NEGLIGENCE, ALTERATION, ABUSE, OR MISUSE. DART MACHINERY, LTD. MAKES NO WARRANTY WHATSOEVER IN RESPECT TO ACCESSORIES OR PARTS NOT SUPPLIED BY DART MACHINERY, LTD. THIS WARRANTY SHALL APPLY ONLY WITHIN THE BOUNDARIES OF THE CONTINENTAL UNITED STATES. Any affirmation of fact or promise made by Dart Machinery, Ltd. shall not be deemed to create an express warranty that the product shall conform to the affirmation or promise; any description of the product is for the sole purpose of identifying it and shall not be deemed to create an express warranty that the product shall conform to such description; any sample or model is for illustrative purposes only and shall not be deemed to create an express warranty that the product shall conform to the sample or model; and no affirmation or promise, or description, or sample or model shall be deemed part of the basis of the bargain.
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