
Please verify any information in question with Bill Estes Ford. Additionally, we do not and cannot guarantee that every vehicle sold will be recall-free. *** While every reasonable effort is made to ensure the accuracy of this information, we are not responsible for any errors or omissions contained on these pages. General rule of thumb for acceptable dynamic compression ratio to run safely on pump gas is 8:1 maximum for engines with cast iron cylinder heads and 8.5:1 with aluminum cylinder heads. Neither the Dealer nor is responsible for any inaccuracies contained herein and by using this application you the customer acknowledge the foregoing and accept such terms. Information provided is believed accurate but all specifications, pricing, and availability must be confirmed in writing (directly) with the dealer to be binding. Piston Design Results Compression Ratio: 11.124 to 1 Working it out To find the compression ratio (CR) you divide the total swept volume with the total compressed volume.

Enter the measurement designation in either inches, 1, or millimeters, 2. Calculating the relationship between piston position in the bore and intake closing point and then determining the effective dynamic compression ratio requires some pretty serious math, but KB. Colors shown are the most accurate representations available. Engine Compression Ratio (CR) Calculator This calculator requires the use of Javascript enabled and capable browsers. Images displayed may not be representative of the actual trim level of a vehicle. Compression Ratio (Swept Volume + Clearance Volume) / Clearance Volume Example Variables Cylinder Bore 4.030-inch Cylinder Stroke 3.000-inch Piston Dome (or Dish) 7cc dome. Please check with your dealer for more information. Must qualify for all applicable discounts. All advertised vehicles are subject to actual dealer availability. Price excludes tax, tag, government fees, a $199 document preparation fee, electronic or other titling fee and emissions testing.

To determine the recall status of a vehicle, visit or click here. RECALL NOTICE: Some vehicles offered for sale may be subject to unrepaired manufacturer safety recalls.
