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Sr blocks are alum, with steel sleeves.
Sr intake manifolds vary. S13 has a long runner manifold, and s14 has a short runner. You can tell the diff, because the s13 manifold has the throttle body under the manifold, and s14 has it about even with the height of the valve cover.
Sr blocks use the upper oil pan for block reinforcement.
Sr20det motors really need an oil cooler. (track)
Oil Filter: Pull off the intake manifold support brackets under the manifold, or you will wish you never had to change your oil again.
sr20 motors dont like ka fuel filters (z32)
Dont raise the boost unless you have an aftermarket fuel pump.
Sr20det trannys are weak.
S15 trannys are even weaker.
Keep your ignitor away from heat (exhaust manifold)
When setting ignition timing with a light, timing marks on crank pully may not be accurate unless you zero the cas (cam angle sensor).
Invest in rocker arm stoppers.
T25 turbos suck.
You better do a good job rerouting the coolant line behind the head for the turbo. Because changing it while the motors in sucks.
ehh.
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