sr20det bottom end

[xero1]

whats the difference between the s14 and s13 sr20det bottom end?

[Slipstream]

I think one difference are the pistons.

[xero1]

so a s13 redtop head should bolt up to a s14 sr20det block?

[vutony]

so a s13 redtop head should bolt up to a s14 sr20det block?

nope...totally two different engines.....only s13 redtop and blacktops are interchangable

[DrifterProdigy85]

S14 SR has the VVT Head or whatever it is.

[180fan]

they are slightly different. the front cover for the s14/15 is slightly different and there is another line for oil running through the front on the s14/15. Otherwise the crank, and pistons, rods are all the same.

Head wise, the heads are different. low port on the s13 and high port on the s14/15.

Yes you can put a s13 head on a s14/15 block.

[xero1]

do i have to stop up the oil passage on the s14 block if i'm going to use a s13 head?

[drifter_for_life06]

my question:

why the "hybridness"

[180fan]

you don't have to plug up the oil passage. it will get covered with a s13 headgasket and head.

[xero1]

since the head gasket and head blocks the extra oil passage, will my s14 bottom end and s13 head setup be as reliable as a regular sr20det?

[180fan]

yes

[xero1]

Has anyone try this combination before?