Description
16v Head Bolt Kit
Firstly, our 16v Head Bolt Kit is a high-performance hardware set essential for securing the cylinder head on Volkswagen Scirocco 1.8L 16v, Mk2 Golf, Mk2 Jetta and B3 Passat 2.0L 16-valve engines. Whether you are performing a standard top-end refresh or a full performance rebuild, these bolts provide the precise clamping force required to maintain head gasket integrity under extreme pressure.
Engineered for 16v Performance
Secondly, Volkswagen 16v engines generate higher thermal loads and compression than their 8v counterparts, making the quality of your head bolts a critical factor in engine longevity.
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Exact Fitment: This kit is specifically designed for the dual-overhead-cam (DOHC) 16v engine found in the Mk2 Scirocco, Golf GTI, and Jetta GLI.
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Material Strength: These bolts qwill handle the specific torque-to-yield requirements of the 16v cylinder head. Moreover, this will ensure uniform pressure across the entire gasket surface.
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Corrosion Resistance: High-quality finishes protect the threads and heads from the heat and fluids found in the engine.
Technical Specifications
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Part Number: Replaces and references OEM Part No. 027 103 385 C (or 027103385C).
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Application: Fits all Mk1 and Mk2 chassis equipped with 1.8L (PL) or 2.0L (9A) 16v engines.
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Kit Weight: Approximately 2 lbs.
Why You Must Replace Head Bolts
Next, for your 16v engine, head bolts are “stretch bolts” (torque-to-yield). This means that during the final tightening sequence, the metal actually stretches. For example, it will provide a permanent, spring-like tension. Additionally, they will lose the elasticity and are not be reused. Attempting to reuse old bolts can lead to:
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Uneven clamping force.
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Head gasket failure (leaking coolant or oil).
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Potential bolt breakage during the tightening sequence.
In conclusion, you must always replace these bolts if you loosen or remove them. Either way, do it right the first time.
OES 16v Head Bolt Kit.
Part No.: 027 103 385 C / 027103385C
16v Head Bolt Kit Specs:
- M11 x 1,5 x 148mm
- Socket Size: M12 XZN / Triple Square
CYLINDER HEAD TIGHTENING TORQUE:
- 1st sequence: 40 Nm (30 ft lb)
- 2nd sequence: 60 Nm (43 ft lb)
- Final sequence: plus 1/2 turn (180°)
