1986 Coup De Ville engine swap

[Dannyjr]

I traded an acquaintance a guitar for this caddy. There is engine knock when revving. What engines would be the easiest to swap with?

[35-709]

A rebuilt one, exactly like the one you've got, from Jasper Engines ---
http://www.jasperengines.com/gas-engines

[Bobby B]

A rebuilt one, exactly like the one you've got, from Jasper Engines ---
http://www.jasperengines.com/gas-engines

Bang! The BEST answer! 
                            Bobby

[76eldo]

A used 4.5 or 4.9 set up for the transverse mounting would work if you are going to try to do it as inexpensively as possible.

The 4.9 was used in 89 and newer I think.

Brian

[g27g28]

4.9 was used in 91 and newer

[The Tassie Devil(le)]

Dannyjr,

You have an email from the Moderators that requires your immediate attention.

Thanks,

Bruce Reynolds,
Forum Administrator.

[TJ Hopland]

89-90? ish which was in the 4.5 era they changed from the throttle body injection system to a sequential multiport system so there are a lot more differences like high pressure fuel system and completely different electronics.

[936CD69]

88 and 89 used the 4.5 with throttle body injection. 1990 the 4.5 got port  fuel injection, 91 thru 95 got the 4.9 with port injection