Product Description

Air Flow Research 6612-16 - AIR FLOW RESEARCH 8mm Valve Stem Seals - Viton .530 Guide.

Manufacturer Part Number: 6612-16

Valve Stem Seal - Positive Stop - 8 mm Valve Stem - 0.530 in Guide - Viton - AFR LS1 Cylinder Heads - Set of 16

Positive Stop

  • Replacement SBC, SBF, LSX Viton Rubber Valve Stem Seal
  • .530" x 8mm
  • Set of 16

* This is a universal item without fitment details. Please make sure this item is for your application. LMP does not guarantee fitment on universal items.

IMAGES: Images may be a representation and may not reflect the actual product.

About Air Flow Research

History and information about Air Flow Research and their products.

AFR Being a pioneer in a field and having a history that spans over forty-five years certainly speaks well for a company and Air Flow Research, the brainchild of Ken Sperling in 1970 is just such a company. The current process of CNC porting cylinder heads that is so prevalent today was developed by Air Flow and their commitment to developing technological advances and flow dynamics for the racing and street arena is still prevalent today.

The Air Flow Research facility in Valencia, California is home to primo manufacturing techniques and state of the art machinery that serves only one purpose and that is to develop top quality, high performance products for racers and street enthusiasts. In addition countless hours of thought and design go into the development of each product with thought being given to specific application and performance. Product testing is, of course, paramount at Air Flow Research and the daily testing includes everything from flow testing to spot checking.

Never ones to rest on their laurels, Air Flow Research improved their manufacturing techniquest throughout the years incorporating things like Wet-Flow Testing and CNC porting of cylinder heads, full 5-AXIS CNC porting and LEAN and AGILE methodologies.. Quality Control plays an important part in the process with only top notch products like the Browne 7 Shar’s Coordinate Measuring Machine being used to ensure premium quality. Then testing and checking assures that every product meets the standards demanded by Air Flow Research.

Take a look at the Air Flow Research Cylinder Heads and Aluminum manifolds that are designed around the Air Flow Research Cylinder head intake ports and paired with the Air Flow Research gaskets and you will find the answer to your power needs.


California Residents: Prop 65 WARNING: This product MAY contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit

California Residents: TIRE WARNING: LMPerformance will not ship Tires to California.

Legal: Some or all of these parts may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. Buyer takes all responsibility to ensure that any modifications or upgrades that have done conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. LMPerformance is not responsible for buyer not complying with Federal, State, Province, and/or Local laws, ordinances, and regulations. This policy shall be in force for all past, current, and future purchases from LMPerformance, Inc. LMPerformance will not ship ANY non-CARB compliant products to California where California requires products to be CARB certified such as Catalytic Converters and Induction Kits.

FREE SHIPPING: Please note FREE Shipping refers to shipping within the contiguous continental US only. All other locations extra. Some items that require Truck Freight Delivery will require a Truck Freight surcharge. This surcharge is still a discounted shipping amount that is lower then the actual truck freight shipping charge that is charged to LMP. LMP will try to still give the lowest price possible for truck freight items.

IMAGES: Images may be a representation and may not reflect the actual product. Examples would be SPEC stage 3 clutch kits which all use the same photo.

TYPOS: LMPerformance tries to present the best most accurate information on our website. Sometimes we get mistakes in product information sent from vendors such as typos. We can not be responsible for these typos, if you see something that does not look right please let us know before ordering so we can double check for you first. LMPerformance will not pay for typos in any way, monetarily or otherwise.

Air Flow Research 6612-16 Valve Stem Seal Review(s)

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