7.4 carb-swap 502 mag
03-17-2002, 01:04 AM
#1
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7.4 carb-swap 502 mag
I own a 1998 checkmate 25'3 convincor with a 7.4 L motor 454carb/300 HP I want to swap it with a 502 mag fuel injection motor complete unit. I know how to read a manual and turn a wrench, aka busted knuckles ha-ha! What does this job take? is it a complete swap , or do I need extra parts? I live in Phila, Pa.area, any really good shops around me or in NJ?
Thanks in advance!
Thanks in advance!
03-17-2002, 02:23 AM
#2
speel chekk this fokker!
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teh big pain in teh ass on that job is moving the engine. I pulled my engeina few months back and have it out for work. The switch shodul be esy as long as you have teh right tools. IE a lifting gantry or a fork lift or a really big cherry picker style engine hoist
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03-18-2002, 03:21 PM
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You will probably need to rejet the carb if you are going to use the one that came on the7.4. Otherwise you will probably be too lean. Is it a Carter, Holley or a Q-jet?
03-18-2002, 05:01 PM
#5
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going for a carb motor to a fuel injected I know you need to run electric fuel pump. I believe you also need a return line to the gas tank. I don't know if you can add the required wires or need a new harness.
