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1987 2006 Jeep 40l Inline Six Trial Assembly

3. When we did a trial assembly of the stroker parts in the stock block, our deck clearance was 0.045 inch. We ended up removing 0.020 inch from the deck. Different aftermarket pistons have different pin heights and therefore different deck heights. Installing one piston and measuring your deck clearance to calculate the final compression ratio could save you heartaches later.
1987-2006 Jeep 4.0L Inline Six - Inside The Inline

 3. When we did a trial assembly of the stroker parts in the stock block, our deck clearance was 0.045 inch. We ended up removing 0.020 inch from the deck. Different aftermarket pistons have different pin heights and therefore different deck heights. Installing one piston and measuring your deck clearance to calculate the final compression ratio could save you heartaches later.  View Related Article

 

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