These Heads are much better than stock GM heads, you will get easily 55-60hp gains!! These new heads castings WE CNC Machine and assemble, that is why and how we have no issues!! Bolt on performance and reliability! Heads are Brand new and all components are brand new parts with no corners cut!
We sell a lot of heads making small dollars with a lot of sales to make big dollars we want a lot of users happy!! Please look close at all the pictures you can see we do all CNC Machine work in house!! With expert people who assemble the heads for trouble free service.
Heads have all bolts holes for all stock accessory brackets, no special brackets needed, no special intakes or exhaust needed, run Stock stuff or aftermarket parts with no problems and great performance!! All specs are listed as follows. Intake Runner Volume (cc): Exhaust Runner Volume (cc).Valve Job: Seat Pressures: Seat Pressure W/O Inner Spring. Yes Closed 135 Closed 105. Yes Double Springs up to.
Parts Used in Assembly as follows. 1.575 one piece swirl polished stainless steel severe duty exhaust valves (Qualcast). 2.020 one piece swirl polished stainless steel severe duty intake valves (Qualcast). 1.320 OD X 2.235 True Double Springs (Qualcast).
New Hardened 1.300 Retainers 7°. New Hardened 312 Valve Locks. New 312 Positive Control Seals.Springs, Engine: LS1 LS2 LS6 Number Of Coils: Dual Spring Damper Spring: No Overall Diameter: 1.320 OD Inside Diameter. 600 313 214 Coil Bind: 1.100 Spring Rate lbs. These heads are assembled and have 135 pounds closed seat pressure. If that is too much you can remove the inner spring and that will put you at 105 Pounds closed seat pressure which is more for a stock replacement. These heads are assembled and ready to final clean and install, No beehive springs here!!
We do all cnc maching and assembly of heads in house! These heads are comparable to Pro header AFR Dart world Edelbrock pro comp speedmaster GM. The item "Chevrolet LS1 LS2 LS6 210cc 64cc Assembled Aluminum Cylinder Heads Pro Header" is in sale since Monday, August 7, 2017.
This item is in the category "eBay Motors\Parts & Accessories\Performance & Racing Parts\Auto Performance Parts\Engine & Components\Cylinder Heads". The seller is "seperformance5" and is located in Fresno, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Bahamas, Viet nam.