2 culasses en aluminium Chevy LS1 LS2 LS6 210cc 64cc 2 têtes de cylindre Pro Qual Cast

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Vendeur: seperformance5 ✉️ (17.022) 99.6%, Lieu où se trouve: Fresno, California, US, Lieu de livraison: US, Numéro de l'objet: 142469376692 2 culasses en aluminium Chevy LS1 LS2 LS6 210cc 64cc 2 têtes de cylindre Pro Qual Cast. Hello This auction is for a new pair,(2) Pro header LS cylinder heads for LS1 LS2 LS6 1999 AND UP CHEVROLET ENGINES Chevy LS1 LS2 LS6 210cc 64cc cathedral Assembled Aluminum Cylinder Heads. 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,

Part Type: Cylinder Heads
   
Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 64 cc
Intake Runner Volume (cc):  Exhaust Runner Volume (cc): 210 cc ( CFM Intake Runner at .600  313.6) 76 cc ( CFM Exhaust at  .600  168.7)
Intake Port Shape:  Cathedral
Intake Port Location:  Standard
Exhaust Port Shape:  Oval
Exhaust Port Location:  Standard
Comp. Valve Job:  Seat Pressures: Seat Pressure W/O Inner Spring: Yes  Closed 135 Closed 105
Intake Valves Included:  Yes
Intake Valve Diameter (in):  2.020 in.
Exhaust Valves Included:  Yes
Exhaust Valve Diameter (in):  1.575 in. 
Valve Springs Included: 

 Yes (Double Springs up to .680 lift) 

Retainers Included:  Yes
Locks Included:  Yes
Valve Stem Seals Included:  Yes 
Rocker Arm Studs Included:  No 
Rocker Arms Included:  No 
Rocker Arm Nuts Included:  No 
Guideplates Included:  No 
Valve Cover Mounting Style:  gm style
Accessory Bolt Holes Drilled:  Yes 
Intake Valve Angle:  45 deg.
Exhaust Valve Angle:  45 deg.
Valve Guides Included:  Yes 
Valve Guide Material:  oil lite  
Valve Seats Machined:  Yes
Valve Seat Machine Style:  3-angle
Valve Seat Material:  Ductile iron 
Oiling Style:  Through pushrod 
Machined for O-Ring:  No 
Heat Crossover:  No
Quantity: Sold in Sets of Two
Parts Used in Assembly as follows: 
  • 1.575" one piece swirl polished stainless steel severe duty exhaust valves (Qualcast) .312 stems
  • 2.020" one piece swirl polished stainless steel severe duty intake valves (Qualcast) .312 stems
  • 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
  • New .015" Valve Shim
  • Springs, Engine: LS1 LS2 LS6 Number Of Coils: Dual Spring Damper Spring: No Overall Diameter: 1.320" OD Inside Diameter: .676" ID Spring Height: 1.800" Seat Pressure: 145 lbs @ 1.800" Open Pressure: 385 lbs
  • . @ 1.150"Flow @ 28" H20  Lift            Intake          Exhaust  .200          144              109  .300          202              154  .400          254              187  .500          290              205  .600          313              214 Coil Bind: 1.100" Spring Rate (lbs./in.): 375 lbs/in Max Lift: .680"
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. Thanks for looking!!
Please feel free to ask any and all questions directly thru ebay messaging system, I will answer all questions, I want you happy!!. I cant include personal contact information its against ebay policy, After purchase on ebay we can exchange contact information as needed.
  • Condition: Neuf
  • Surface Finish: Cast Aluminum
  • Manufacturer Part Number: SCE-401
  • Brand: SCE Pro header
  • Warranty: Yes

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