383 Stroker Heads and Intake question !!!!
383 Stroker Heads and Intake question !!!! I'm buying a brand new 383 short block that's rated at 500 hp and wanted to ask if this set of heads and intake are good to complete the stroker, if not what do you guys recommend for that type of HP?
Here are the details :
Fully ported and polished heads and intake. 195cc heads that have been fully ported and polished with a matching 58mm intake.They have a fresh valve job with 1.94 1.50 valves with new felpro valve guide seals installed. They have new LT4 valve springs, keepers, retainers,shims, comp guideplates . The studs are the stronger 7/16 ARP studs rated at 190,000 psi.
I was told I can expect over 400rwhp from these heads&intake with a small/mild hyd. roller cam with supporting bolt ons like headers, roller rockers and good exhaust but are they enough for a 500 hp 383 block?
They are stage one heads flow around 265/180 cfm @ .600 lift. A superflow bench with 28" of water using a 4.000 bore was used.
Every comment and/or suggestion and very much appreciated.
Here are the details :
Fully ported and polished heads and intake. 195cc heads that have been fully ported and polished with a matching 58mm intake.They have a fresh valve job with 1.94 1.50 valves with new felpro valve guide seals installed. They have new LT4 valve springs, keepers, retainers,shims, comp guideplates . The studs are the stronger 7/16 ARP studs rated at 190,000 psi.
I was told I can expect over 400rwhp from these heads&intake with a small/mild hyd. roller cam with supporting bolt ons like headers, roller rockers and good exhaust but are they enough for a 500 hp 383 block?
They are stage one heads flow around 265/180 cfm @ .600 lift. A superflow bench with 28" of water using a 4.000 bore was used.
Every comment and/or suggestion and very much appreciated.
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Joined: Nov 2004
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I would go with the AFR 195cc heads. They just started making the new eliminators in the LT style this month. Check out the flow spec's
http://www.airflowresearch.com/195sbc_lt4.php
http://www.airflowresearch.com/195sbc_lt4.php
You can achieve 400rwhp with a smallish cam and properly ported stock LT1 castings...I'm right at that number with my 383 with ported LT1 castings, 2.00/1.56 valves and a 226/234 cam, port matched intake, 58mm TB, etc..I don't know how much lift the LT4 springs are good for....525"? Imho a good street/strip combo would be ported bigger valve stockers and a cam with no more than .570" lift and 220ish/230ish duration...The nice thing with this type of set up that you don't need big gears/converter to make it run well and you don't have to rev the thing to the moon to make power...
My stuff was done by a non-sponsor, but most around here look to Advanced Induction and Lloyd Elliott...
--Alan
My stuff was done by a non-sponsor, but most around here look to Advanced Induction and Lloyd Elliott...
--Alan
