I have arranged an almost complete 350 out of a 1990 iroc (things not included are:all sensors, starter motor, no pullys or brackets (alternator, water pump, etc) to go into my 86 z28.

I know I need a new knock sensor and chip but what else? I am going to keep it MAF for the time being so what needs to be done there? Is there anything else that will need modding to make it fit? I dont want surprises when it goes into the shop... want to make the swap as simple and quick as possible.

Thanks

 

Use the base and injectors from the '90 engine. Move everything else over from the '86 engine.

The knock sensor is mounted in the block in front of the starter, it might still be there. If so, then all you need is the module.

You won't need a chip to get it running, but it might run better with a 350 chip.

 

thanks five7, yeah i ordered an ostrich from moates today. so everything is compatible... like the exhaust manifold? nothing needs to be modified or anything to make it fit?

 

Nope.

The '90 will have center-bolt valve covers, the '86 perimeter bolt, but you'll be using the '90 parts on the '90 engine, so no problem there.

All of your '86 accessories will transfer over to the '90 engine.

 

Thanks again. What about the fact that the 90 is MAP and im keeping MAF? Is it just a matter of plugging some holes and hooking up the MAF?

 

Take all of the TPI parts off the '90 engine except the base, injectors, and knock sensor (if it's there) and set them aside. Take the TPI parts off of the '86 engine except for the base, injectors, and knock sensor, and put them on the '90 engine when it's in the car.

 

cool, hopefully it will be a nice quick and inexpensive swap over. thanks

 

one more question - i will need a new ESC module wont I? Apparently the '90-92 had the ESC programming in the chip but since im staying MAF i need to use an '89 bin so i guess that means i need a 350 ESC module.

 

ok i have some question following this thread. me and a friend have a 89 iroc with the LB9 305 tpi. what would be the best mods to the car (so far k&n replacement filters and flowmaster cat back. i know headers are next. we want to but a 350 bottom end in with the upper tpi the same. what all is going to have to be changed. any fuel, ignition, computer type of things? i have looked for a post on the swap and could'nt find one if yall could point me in a better direction i would appreciate it thanks, justin

 

"You won't need a chip to get it running, but it might run better with a 350 chip."

 

Ive got the ostrich in there at the moment running a stock '86 305 bin. My question is do i need to replace the ESC cos i heard the 305 and the 350s are different.... but i dont want to be forking out for parts i dont need if they are compatible.

 

Well the swap is complete and im very happy with the results