Cadillac engine knowledge
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===High performance tolerances=== | ===High performance tolerances=== | ||
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Crank end-play- minimum .008 | Crank end-play- minimum .008 | ||
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the turbo 4l80e is the best transmission to use on the cadillac 472 and 500 due to the fact that u can run 4.11 gears and not over rev the engine. with a 2000 dollar cpu controller, its not for poor guys, The cad 500 mad my 87 vette really move. i bored and stroked it to 608 cid. with a 4.440 bore and a 4.600 stroke with a .300 offset bore. | the turbo 4l80e is the best transmission to use on the cadillac 472 and 500 due to the fact that u can run 4.11 gears and not over rev the engine. with a 2000 dollar cpu controller, its not for poor guys, The cad 500 mad my 87 vette really move. i bored and stroked it to 608 cid. with a 4.440 bore and a 4.600 stroke with a .300 offset bore. | ||
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===Engine mounting=== | ===Engine mounting=== | ||
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one nice thing about the cad pumps is that u can use a q-jet jet to shim the stock pump spring to boost oil pressure. 10-12 psi per 1000 rpm is good. make sure after u do this u run an electric drill onto the oil pump shaft to prime the engine. try and use the front sump oil pan design to eliminate the longer pickup. this will help keep the engine primed as well as a thick motor oil. if only a new pump design would be made for these engines. but as always the suffering to build a cad right goes on............. | one nice thing about the cad pumps is that u can use a q-jet jet to shim the stock pump spring to boost oil pressure. 10-12 psi per 1000 rpm is good. make sure after u do this u run an electric drill onto the oil pump shaft to prime the engine. try and use the front sump oil pan design to eliminate the longer pickup. this will help keep the engine primed as well as a thick motor oil. if only a new pump design would be made for these engines. but as always the suffering to build a cad right goes on............. | ||
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===Clearance issues=== | ===Clearance issues=== | ||
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i have found that the cad engines do not fit easily in many gm chassis. never fit the engine in without putting the exaust manifol on first. i tried that and couldnt get to the bold without bloody knuckles in a cad 500 in an 80 camaro swap. better yet use a custom set of tight tuck headers. as usualy cad parts are insanely expensive but worth it in this case. | i have found that the cad engines do not fit easily in many gm chassis. never fit the engine in without putting the exaust manifol on first. i tried that and couldnt get to the bold without bloody knuckles in a cad 500 in an 80 camaro swap. better yet use a custom set of tight tuck headers. as usualy cad parts are insanely expensive but worth it in this case. | ||
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===Intake manifold=== | ===Intake manifold=== | ||
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The stock efi is not good for performance applications. it does not keep up with aftermarket cams. you need to change the fuel injectors for high flow ones and use a more modern fuel pump with a return line. the stock units will only handle approximately 300 hp max. there also hard to find replacement parts for. and there were more cars made with the 800 cfm q-jet then the fuel injection units. and whats worse is the fuel onjection didnt make much more hp then the carb version of the engine due to weak fuel injectors. | The stock efi is not good for performance applications. it does not keep up with aftermarket cams. you need to change the fuel injectors for high flow ones and use a more modern fuel pump with a return line. the stock units will only handle approximately 300 hp max. there also hard to find replacement parts for. and there were more cars made with the 800 cfm q-jet then the fuel injection units. and whats worse is the fuel onjection didnt make much more hp then the carb version of the engine due to weak fuel injectors. | ||
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===Distributors=== | ===Distributors=== | ||
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so many people have complained about the cadillac hei distributers having too much advance that i have gone to the chevy distributer and cut it down to fit the cadillac engines. i had so many problems with mine as well from a 76 cadillac 500. it was so hard to time. i suffered greatly until i replaced the unit. many cars especially camaros will not allow the hood to close. or even close with the hei distributor in place. or just use the older points distributor. you can cut the stock hei unit down about 2 inches and have it clear everything if u know how to measure and cut correctly. it wasnt too hard and i did it with sucess. always reshape the end of the distributor shaft to fit into the oil pump shaft. never cut and weld a shaft together as it will warp it. | so many people have complained about the cadillac hei distributers having too much advance that i have gone to the chevy distributer and cut it down to fit the cadillac engines. i had so many problems with mine as well from a 76 cadillac 500. it was so hard to time. i suffered greatly until i replaced the unit. many cars especially camaros will not allow the hood to close. or even close with the hei distributor in place. or just use the older points distributor. you can cut the stock hei unit down about 2 inches and have it clear everything if u know how to measure and cut correctly. it wasnt too hard and i did it with sucess. always reshape the end of the distributor shaft to fit into the oil pump shaft. never cut and weld a shaft together as it will warp it. | ||
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==Cadillac engine parts sources== | ==Cadillac engine parts sources== | ||
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[http://www.cad500parts.com/ Cad Company] | [http://www.cad500parts.com/ Cad Company] | ||
[http://www.500cid.com/ Maximum Torque Specialties] | [http://www.500cid.com/ Maximum Torque Specialties] | ||
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[[Category:Engine]] | [[Category:Engine]] | ||
[[Category:Identification and decoding]] | [[Category:Identification and decoding]] | ||
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