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va240dude · 09-21-2010, 05:30 PM

I'm in the process of breaking down my motor to rebuild it for roughly 320rwhp, and had a few questions about upgrading the head. I've read the 9k rpm head article and tons of other stuff but this being my first build, I wanted to seek the wisdom and experience of guys that are currently running the similar setups.

My current plans are:

Mostly stock bottom end with new OEM piston rings, ARP studs
New Timing Chain and Tensioners
Cosworth or Greddy Headgasket
264 Cams and aftermarket sprockets
Rocker Arm Stoppers
Greddy Intake Manifold
Z32 MAF
GT2871 Turbo
550cc or more injectors

I want this to be a solid motor, in terms of reliability, and it will be mostly used as a DD.

The head is intact and in good shape right now with roughly 100k on it. I haven't broken it down yet, except for cams, because I didn't know if I should be upgrading the valve springs and retainers, etc, or if I'll be fine with just cams, sprockets, rocker arm stoppers and upgrading headgasket and arp studs. Any other guys running stock springs and retainers, valves etc reliably with 350hp? Thanks for any input you might have.

09-21-2010, 05:30 PM	#1
va240dude Post Whore! Join Date: Apr 2008 Location: 千葉県／Virginia/Under my 240 Age: 39 Posts: 2,832 Trader Rating: (161)	SR20 Head Upgrade Questions I'm in the process of breaking down my motor to rebuild it for roughly 320rwhp, and had a few questions about upgrading the head. I've read the 9k rpm head article and tons of other stuff but this being my first build, I wanted to seek the wisdom and experience of guys that are currently running the similar setups. My current plans are: Mostly stock bottom end with new OEM piston rings, ARP studs New Timing Chain and Tensioners Cosworth or Greddy Headgasket 264 Cams and aftermarket sprockets Rocker Arm Stoppers Greddy Intake Manifold Z32 MAF GT2871 Turbo 550cc or more injectors I want this to be a solid motor, in terms of reliability, and it will be mostly used as a DD. The head is intact and in good shape right now with roughly 100k on it. I haven't broken it down yet, except for cams, because I didn't know if I should be upgrading the valve springs and retainers, etc, or if I'll be fine with just cams, sprockets, rocker arm stoppers and upgrading headgasket and arp studs. Any other guys running stock springs and retainers, valves etc reliably with 350hp? Thanks for any input you might have. __________________ 180SXオタクだ!