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Porsche 356 & 912

JPS Aircooled Porsche 356 912 CNC Billet 93/94mm "Sport Plus" Complete Cylinder Heads inc 8mm Head Studs

More info on LN Engineering's Prop 65 policy

JPS Aircooled Porsche 356 912 CNC Billet 93/94mm "Sport Plus" Complete Cylinder Heads inc 8mm Head Studs


In stock

SKU: 102-10.4

JPS Aircooled's Cylinder Heads are billet aluminum CNC machined replacements, not castings, manufactured according to the factory drawings, with a lot of improvements over old cast heads that are now more than 50 years old, worn out, and tired.

Don't waste your time on reworking used heads. These 100% new "Sport Plus" CNC billet heads have ports that have been extensively flow bench tested with a lot of improvements and outperform any stock and most modified heads by far. No porting, polishing, or special modifications are required with these heads - they just work, right out of the box. They flow an amazing 195 CFM max with a stock Solex manifold (blended to match intake port on head) and 202 CFM with the optional JPS Aircooled Billet 48 IDA intake manifold.

JPS Sport Plus heads are designed and configured for use exclusively with CRE (Claus Ruppman Engineeirng) LN Engineering 93mm or 94mm Nickies Cylinders and JPS Custom 8mm head studs. Heads have 69.5cc chambers and are sold complete with 8mm stem diameter 42mm intake and 35mm exhaust valves, manganese valve guides, hardened seats, titanium valve spring retainers, and performance dual valve springs. Heads feature a black anodized exterior finish.

Don't accept inferior components - JPS Aircooled products are precision made in Switzerland.

If we are out of stock, lead time is approximately 8-10 weeks. Single plug version special order only. Please call for current inventory or lead times before ordering.

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Additional Information

Brand JPS
Manufacturer's Suggested Retail Price $6,884.00

Important Seller's Note

The Seller, hereby expressly disclaims all warranties either express or implied, including any implied warranty of merchantability or fitness for a particular purpose, and neither assumes nor authorizes any other person to assume for it any liability in connection with the sale of this part(s) and/or service. Buyer shall not be entitled to recover any consequential damages, damages to property, damages for loss of use, loss of time, loss of profits, or income, or any other incidental damages. In addition, expressly excluded is any liability for defects pertaining to safety or performance, by way of ‘‘strict liability’’, negligence or otherwise. In the event of non-payment, the Buyer agrees that the costs of collection including court cost, and reasonable attorney’s fees, shall be recoverable from the Buyer. The Buyer has read and with any transaction, agrees to all of the terms and conditions in connection with the Seller.

Terms: • All Returns/Exchanges Require Written or Verbal Pre-Authorization and RMA Number. • Positively No Exchanges Without This Invoice. • No Refunds On Opened Packages Or Used Parts. • Items Returned Must Be In Original Packaging. • No Refunds On Special Orders. • No Return On IMS Parts. • No Refunds After 30 Days. • 25% Handling Charge On All Returned Items. • No Returns On Electrical Parts. • Refund On Purchases Paid By Check Are Refunded After Check Clears. • Limited Lifetime Warranty on NSC plating provided by Millennium Technologies LLC and subject to their terms and conditions. • There is no warranty on blocks processed with the Nickies Lite direct plating process. • Any Damage Must Be Reported to the Shipper and LN within 24 Hours of Receipt.

By continuing with your purchase and completing the checkout process you acknowledge and agree with Sales Terms and Conditions.

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Questions or comments? Feel free to contact us before ordering. Open a service ticket, call 815.472.2939 or email