help how can i tell if bottom end ,pistons ,crank and head are turbo or na spec??

[john fraser88]

as above guys

[AdamB]

The 4EFTE crank is marked 4ET, where as the N/A is marked 4E I believe.

Pistons, am not too sure on as I've never seen an N/A set, but the turbo ones have a slight dish to them.

The heads are the same apart from the valve springs.

[Flaminsam]

The pistons on the na are built up on the crown to make the combustion chamber smaller to give it higher compression I believe. I do believe the jdm na engines have flat topped pistons?

[john fraser88]

th crank says 4et but th block hasnt got th threaded rods cuming out of it for the oil filtr housing?

[AdamB]

Has it got the turbo oil feed on it?

On the turbo engines there is the centre bolt and 3 smaller nuts which hold the oil filter housing in place. The N/A ones just have the centre bolt, it is possible to swap them over but an oil feed for the turbo would have to be taken from another place.

[john fraser88]

no it hasnt got th 3 threaded rods

[Chris Green]

I know the heads are different as well. The 4e-fte head has extra waterways, this is the same with the 5e-fhe. I found out the hard way when I fitted my Corolla mani as water started to shoot out.

Here is a useful guide.

Click

[rmsnoel]

All cranks are stamped fte all heads are the.same just later uk ones have a waterway blocked and a 4efte block has 3 holes around.the oil filter area instead of one bug thingy in the middle. Fte pistons are dished 5efe pistons are nearly flat, fhe pistons have abit of a bump and 4efe pistons have a huge bump. 4efe conrods are skinny- but so are glanza conrods. Designed to bend, not break