Engine swap 1973 SRV24 sport bridge

[fishchip64]

I have a SRV24Sport bridge that was re powered with an 888 combo(302 and888 out drive) from the original 255 351w and who knows what out drive,The boat is now underpowered.Question #1will a 350 chev work with the existing gimbal ring?#2 will the 350 mate upto the 888 outdrive it has the long input shaftand 1:47 gears#3other than the exuost Y ,and the engine coupler,motor mounts will my swap work?

 

[Bondo]

Re: Engine swap 1973 SRV24 sport bridge

Ayuh,... If ya can find a Complete, Fully dressed 350 of that Vintage,...
Ya it might be doable....probably with issues of fitment...

Otherwise, it's a fit it, 'n try it proposition...

 

[fishchip64]

Re: Engine swap 1973 SRV24 sport bridge

Ayuh,... If ya can find a Complete, Fully dressed 350 of that Vintage,...
Ya it might be doable....probably with issues of fitment...

Otherwise, it's a fit it, 'n try it proposition...

Whold it b simpler to repower with a 351W of same vintage The351 is a taller block would everything still line up,ie gimble-input shaft motor coupler,thanks

 

[Bondo]

Re: Engine swap 1973 SRV24 sport bridge

Whold it b simpler to repower with a 351W of same vintage The351 is a taller block would everything still line up,ie gimble-input shaft motor coupler,thanks

Ayuh,... I believe so, but I ain't a Ford kinda guy....

I believe the height is made up for in the rubber couplers in the exhaust,...
Not sure though...

 

[Gettinther]

Re: Engine swap 1973 SRV24 sport bridge

Whold it b simpler to repower with a 351W of same vintage The351 is a taller block would everything still line up,ie gimble-input shaft motor coupler,thanks

I would say yes
Exhaust manifolds should transfer
Thermostat housing should transfer
The 351w has a taller deck and a wider intake manifold than the 289/302 - 351 intake needed
Measuring across the 289/302 I find it to be roughly 9.25" the 351 i believe is 11.25 in. between the cylinder heads at the deck
Also the oil pump drive shaft is 5/16" on the 289/302, whereas the 351w is 3/8". - need 351 marine distributor

Since you have a flywheel, bellhousing, starter that work together now, they should transfer onto the 351

Head bolts on the 289/302 block are 7/16", whereas the 351w has 1/2" head bolts.< just point of interest

Hope this helps and good luck

 

[fishchip64]

Re: Engine swap 1973 SRV24 sport bridge

Thank you