visual differance s14 or s15 sr20det?

[capones14]

ok my friend has a sr20det we thought it was a s14. but someone it telling him it is a s15. can anyone tell me what to look for to tell them apart please? it has upgraded turbo. has s14 injectors. we think the guy bought the motor didnt knowit was a s15 sr20det and put s14 parts on it please help!

[garagelu]

One thing I always look at is the valve cover hardware. S15 SR used shoulder bolts for the valve cover. Also the coil packs are different on the S15 so that means the holes where the coil packs go in on the valve cover are smaller.

[capones14]

is there anything different about block of head

[usdm180sx]

s15 sr doesn't have an ignitor chip