MN69Grande 203 Report post Posted May 7, 2014 So a couple weeks ago I took delivery of a 306 crate motor from Ford Racing. I don't have my old motor out yet. However I'm going to need a new flexplate with the correct balancing. When I look at summit racing there are multiple options: http://www.summitracing.com/search/part-type/flexplates/make/ford/engine-size/5-0l-302/engine-family/ford-small-block-windsor/engine-balance/external-50-oz-imbalance?SortBy=Default&SortOrder=Ascending Does anyone know if the number of Teeth and Bolt Pattern were standard in 69 and what they are? (early 69 with 68 serial numbers on the motor) Is the pattern based on the Engine or Transmission/Torque converter? I assume the teeth has to do with the starter? I'd like to order the parts and have them ready for a quick swap.. Quote Share this post Link to post Share on other sites
Rsanter 152 Report post Posted May 7, 2014 What so the engine and trans in there now? What is the ballace on the crate motor? 28.8 or 50oz Diameter, number of teeth, and converter pattern is based on the trans. The ballance weight is based on the engine Quote Share this post Link to post Share on other sites
MN69Grande 203 Report post Posted May 7, 2014 What so the engine and trans in there now?What is the ballace on the crate motor? 28.8 or 50oz Diameter, number of teeth, and converter pattern is based on the trans. The ballance weight is based on the engine Ahh so the balance is 50oz. That I know from the paper work that came with the motor. The original engine/transmission is in the car and original to the car but we are going to swap it until there is time to rebuild it properly. Later this crate will get reused elsewhere. or at least that is the plan. So I was hoping to get the parts lined up as there is limited time to work on the car. Quote Share this post Link to post Share on other sites
Rsanter 152 Report post Posted May 7, 2014 So what trans do you have? If you have a C4 then there is a specific flex plate that is used for the swap. Most mustang shops and mustang specific trans shops have the plate Bob Quote Share this post Link to post Share on other sites
MN69Grande 203 Report post Posted May 7, 2014 Yeah sorry. I should have mentioned I have a C4. But it looks like there are 2 options +. 157 teeth and 164 teeth 10.5 inch vs 11.75 inch. Quote Share this post Link to post Share on other sites
Rsanter 152 Report post Posted May 7, 2014 The earlier C4 for the 302 used the 157 tooth flexplate That's what I have in my 69 302 car with C4 Bob Quote Share this post Link to post Share on other sites
Wycked69 20 Report post Posted May 8, 2014 The bellhousing on the C4 actually determines whether the flywheel is a 157 or 164. See attached PDF reference guide. Quote Share this post Link to post Share on other sites
MN69Grande 203 Report post Posted May 8, 2014 The bellhousing on the C4 actually determines whether the flywheel is a 157 or 164. See attached PDF reference guide. Thanks! This awesome. I was thinking it was probably 157. I'll check for the part number on the bell housing. Quote Share this post Link to post Share on other sites
Glenn83 19 Report post Posted May 8, 2014 If it's a case fill c4 it will be the 157t, and if it's a pan fill it will be 164t Quote Share this post Link to post Share on other sites
