James, Evo cylinder head & base gasket kit
Standard 3-1/2" bore. Kit to service one engine. With .045" head (.046 starting thickness and .042" final crush) and .030" base gaskets (.031" starting thickness and .025" final crush). Complete with type ''A'' (early) and type ''B'' (late) style base gaskets. With O-rings as used for oil return on up to 2007 XL models. Type ''A'' (early style) and type ''B'' (late style) gaskets explained: There are 2 types of cylinder base gaskets for Evolution models available. For convenience sake we''ll call them ''type A'' (early) and ''type B'' (late). *Type A'' gasket was introduced on the 1984 Evolution Big Twin models; and can be used on all of the 84-99 1340cc Evo models and will follow the contours of the cylinder base perfectly. They will fit 86-22 Evo XL; but stick out at the cylinder base. This can be a problem with silicone beaded base gaskets. *Type B'' gasket was introduced on Evolution XL Sportster models in 1986; and will fit all Evo XL models; but also all 84-99 Evo 1340cc models although the Big Twin cylinder base is a bit larger than the gasket. The ''type B'' is the only gasket type that ''The Factory'' supplied from 1986 onwards for both Evo Big Twin and Evo XL Sportster models. Both type ''A'' and type ''B'' have identical inner bore diameter; oil hole and stud hole locations. Gaskets for front & rear cylinder are identical. Only difference between the ''A'' & ''B'' gaskets is the outside perimeter.
The estimated dispatch time is displayed on each product page and depends on the product’s stock location:
- In stock: dispatch within 1–3 business days
- European stock: dispatch within 2–3 business days
- USA stock: estimated dispatch within 3–5 weeks
- Products with a specific lead time: estimated dispatch according to the timeframe displayed on the product page
Once your order has been dispatched, you will receive a confirmation email with tracking information.
Estimated carrier transit times are:
- France: 1–5 business days
- Most European destinations: 5–10 business days
- Countries outside the European Union: delivery times may vary depending on the destination and customs clearance
The dispatch estimate and carrier transit time are separate.
Compatibility
You can verify compatibility in two ways:
- Use the vehicle selector on the product page to check whether the part matches your motorcycle.
- Review the fitment table for the full list of compatible models and years.
Some parts may require additional components, modifications or a specific existing setup. Always read the fitment notes and product description before ordering.
Still unsure? Contact us with:
- motorcycle make and model;
- model year;
- exact version or trim;
- current modifications;
- product reference or link.
Our team will help you confirm compatibility before ordering.
Eligible items may be returned within 30 days of delivery.
To be accepted, the item must be:
- unused and uninstalled;
- in its original condition;
- returned with its original packaging, labels and accessories.
Parts that have been installed, damaged or modified cannot be returned.
Please contact us before sending an item back. Returns sent without prior authorization may not be accepted.
Return shipping costs remain the customer’s responsibility unless the item received is incorrect, damaged or defective.
Customs Duties & Taxes
European Union
Orders delivered within the European Union are shipped from France. No import duties are charged upon delivery.
Countries outside the European Union
Local VAT, customs duties and carrier clearance fees may apply. These charges are determined by the destination country and remain the customer’s responsibility.
Payment Options
We accept major credit and debit cards, PayPal and the installment payment methods displayed at checkout.
Eligible orders may be paid in 3 or 4 installments, subject to the payment provider’s approval and applicable limits.
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