R+R wye pipes

Oldpanel

Cadet
Joined
Sep 8, 2019
Messages
6
My wye pipe are coroded and need replaced. Manifolds and risers are off . I need a brief step by step guide to help me minimize extra work. My ability is good but no marine exp. Working on 1990 chaparell 2750sx. Twin 5.7l's
 

GA_Boater

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May 24, 2011
Messages
49,038
Welcome to the forum.

Remove the fuel line, disconnect the wiring plug, remove the drive, remove the rear motor mounts, remove the side motor mounts and yank the motor. Repeat for the other motor. Y pipe replacement can only be done with the motor removed or slid forward.
 

Oldpanel

Cadet
Joined
Sep 8, 2019
Messages
6
Thanks for the info. The motors look pretty easy the drive is the new thing. But I'll work on it for awhile. Any body got an idea for where to get 2 long blocks?
 

Bondo

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Staff member
Joined
Apr 17, 2002
Messages
70,468
Any body got an idea for where to get 2 long blocks?

Ayuh,..... Welcome Aboard,..... You can get brand new long block crate motors from yer local GM dealer for 'bout 2 grand a piece,.....
 
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