I know this topic has come up several times in the message board but I thought I'd try and get an opinion for my particular situation. I've got a 91 Z28 convertable. All the convertables (as far as I know) came with the 305. The car is a blast and the engine runs great with perfect idle and no oil leakage, but as she as 130k miles on her, I can forsee imminent probs. So I'm considering swapping in a Crate 300hp 350 engine.

Anyone ever made this marriage before or known someone who has? and what they think of it?

I'm not a complete gear head and am not concerned with lap times or tricky engine mods. The only mods I have are functional ram air, and custom flowmaster exhaust. I just want an engine that will get up and go and make driving my Z28 more fun.

All opinions appreciated.

Keep motoring.

 

I dont think it would be much of a problem, except for the fuel injection part of the motor, because the new 350 would be starving for fuel, but other than that it would bolt right up!!

 

I agree with jim. Both engine have the same exterior size, so mounting it won't be a problem. However, you may need bigger injectors and possibily a new fuel pump. just my 2 cents

 

Most parts from the 305 can be changed over to the 350, however; you will need 22# fuel injectors, a 350 chip and different senors to make it work. A lot of info on this subject so do a search. Otherwise it is a easy swap and all the major componets mate up.

 

Thanks guys.....Everything you have said jives with what I'm hearing from Crate motors; bigger injectors, fuel pump, and chip.

I'll keep you posted on the progress.

:hail:

 

Matt
One question for you regarding the fuel pump. What engine do you have now, and is it a in tank pump?? Because you may not need one with this swap. Check it out.

 

Fuel pump should be fine, maybe get a pressure regulator and bump up the pressure from stcok 39# to 44#. Keep adjusting in 1 lb increments. Also, try the 24# injectors and you will definately need a new chip. Don't go hypertech