Product Details
Domestic 23° Tour Series Gas Ported Inverted Dome Piston Set by JE Pistons®. Similar to the Ultra Light GP, this piston has undergone engineering changes to handle higher horsepower 4-barrel applications (approximately 650 hp) and angle milled heads. Both 350 and 400 series accept oversize valves (intake pocket is 2.255” and the exhaust pocket is 1.870”) and long duration, tight lobe separation cams. The ring grooves are precision machined for .043, .043, 3mm back cut rings with lateral gas ports for superior ring seal. Enjoy superior performance by getting this premium-grade JE Pistons product that is throughly engineered to help take the performance of your fuel system to the next step delivering unprecedented levels of reliability and strength. The use of the finest materials and advanced technology makes this product unbeatable in durability and quality.
Specifications
Bore Size: 4.040" |
Oversize: 0.040 |
Connecting Rod Length: 6.000" |
Block Height: 9.000" |
Compression Height: 1.250" |
Gram Weight: 401 |
Piston Degree: 23° |
Piston Type: Inverted Dome |
Quantity: Set of 8 |
Recommended Ring Set: J70008-4040-5 |
Stroke: 3.500" |
Weight: 401 g |
Dome Volume: -5 cc |
Compression Ratio @ 58cc: 11.2:1 |
Compression Ratio @ 64cc: 10.3:1 |
Compression Ratio @ 76cc: 9.1:1 |
Features
- Perfect for upgrading your fuel injection system
- Made with the use of the highest quality materials
- Modern technology for uncompromising reliability
- Proven to deliver unmatched performance and strength
- Will provide dependable operation for years to come
With over 70 years of experience, JE Pistons® is the leader in high-performance forged pistons. JE has a history of manufacturing the highest-quality pistons and components that professional engine builders, race teams, and high-performance enthusiasts trust and rely on. The top engine builders in NASCAR, ALMS, NHRA, AMA Supercross and others choose JE Pistons. For over 70 years, JE's position at the forefront of performance piston manufacturing has been a result of continuous research and development of unique materials, piston designs and technologies. Utilizing state-of-the-art CNC machines for manufacturing along with purpose-designed forgings, JE is able to maintain exacting specifications on each and every piston and hold tolerances to millionths of an inch. Also available from JE is industry-leading processes like Ultra Crown, a Digital Three Dimensional piston crown machining process and Finite Element Analysis (FEA).