Sr20det head build.

[running_sideways]

Sorry guys been really busy getting parts wrangled car cleaned up and figured out. Hopefully getting the block back from the machine shop tomorrow...its been two weeks. But on other. Note I seen everyone's comment on longevity. Let's say you guys were building a head for decent performance and longevity. What would be your set up.


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[TheRealSy90]

Dual rocker arm guides, JWT S4 cams. That's it for the head build.


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[Bleakley]

Honestly.. Something similar to what he said. It's not worth it to put any serious money into he det head. The money you spend on the det head is worthless at that point while the VE head swap is an option.

[SoundEfx]

I hope that this is not a thread jack, but the answer could benefit the op as well if they don't already know.

But why is the VE head a better option than the DE-T head?
I would think that the head developed for boost would have a better flow.

[Bleakley]

Airflow...
The VE head flows way more than any DET head.

AND shaft-mounted rockers.

[SoundEfx]

Thanks for that info.
It's weird that the head designed for boost is beaten by a standard one.

[Kingtal0n]

Originally Posted by running_sideways

Sorry guys been really busy getting parts wrangled car cleaned up and figured out. Hopefully getting the block back from the machine shop tomorrow...its been two weeks. But on other. Note I seen everyone's comment on longevity. Let's say you guys were building a head for decent performance and longevity. What would be your set up.


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Longevity you say?

some stuff
OEM or near OEM spring rate springs
JWT S3 or S4 camshafts
valve job, ferrea valves, titanium retainers, guides (if you are in there anyways)
OEM engine bearings
tight piston/wall clearance
brand new oil pump
doctor clean assembly room
do not deck the block or shave the head if possible
7k redline max, since this is a .0008"~ main bearing and using 10W-30 oil for longevity/economy

Your engine is probably getting a tri-coat bearing (non OEM) with a .0022" clearance, and an enormous piston wall clearance as well. If so, you will need a thicker oil (the assembler would probably recommend a 40W or 50W oil) cold starts with will very rough on the engine, put additional wear on the cylinder walls and engine bearings, due to the massive clearances. Those clearances are there so you can make 500-600bhp, which is why I said to use a 60lb/min turbo and not a baby nearly OEM size turbo like the 2871.

[JesusFreakDrifter]

I hope a ve vs. det debate doesn't ensue, I would love to see more options on de and det heads as well as some others