oneround1

iTrader: (10)

im trying to find out using a s5 rebuilt block will work will all s4 parts from alt intake manifold exhaust water pump housings. thanks

Hazard15301

iTrader: (5)

Everything will bolt up correctly. The S4 LIM will have to be modified to fit the ports on the S5 engine. I have the same setup in my car, just with a modified S4 LIM

oneround1

iTrader: (10)

thank you so much trying to ask for help. hopefully get the car running today. since you have same setup did you use s4 ecu and engine harness too??

thejallenator

iTrader: (14)

use the ecu and harness that go with the car. anything else is just going to make you want to kill yourself.

oneround1

iTrader: (10)

lol yea hopefully i wont

bostonspgs

iTrader: (1)

well if you cant handle the wiring maybe , my car is the same s5 turbo manifold and s4 intakes and tb, but i am redoing the whole front half's harnesses to remove unnecessary options like :

dual wiper reservoir
A.A.S.
Cruise Control
A/C
Power Steering
All Emissions removed
Rewired coolant system

jefFC415finest

iTrader: (2)

https://www.rx7club.com/showthread.p...55#post5131155

its in the FAQ page.

I've tried the reverse with the s5 parts on a s4 block but never got the car to stay on. Just found another s5 block and in the middle of completing my swap.

I have another s4 block for you if you are in need. Located in San Francisco.

oneround1

iTrader: (10)

how much will you sell the block for?? im in need of a block badly. can you pm me? thanks.

oneround1

iTrader: (10)

i heard from another guy if i do this all emissions must be removed if i use the s4 upper and lower manifold. also the s4 used a mechanical oil pump comparing to electric s5?

RotaryEvolution

iTrader: (30)

front cover is the main difference, due to the electrical OMP and the lack of an EGR port so the car will never pass emissions if you do swap it.

oneround1

iTrader: (10)

thanks info really helpful for now and future reference

Coquisubi

What modification needs to be done to the s4 lim to make it work on the s5 block? I see that it bolts up perfect bit theres an extra port on the bottom on the block.

RotaryEvolution

iTrader: (30)

it just blocks the ACV port, otherwise it fits fine.

Wms10th

iTrader: (2)

I have an S5 Turbo block in my car except for the front cover off my S4 block. I have all emissions installed. I did have my lower intake ported to match the street port I had done.