PRC 237cc Specs / Flow / Pics INSIDE!!
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From: Texas!
PRC 237cc Specs / Flow / Pics INSIDE!! We're pleased to announce the PRC casting is just about complete & here's a teaser pic of the all new 237cc casting cnc ported & ready for install on a customers 408 iron block!
The 237cc port is a supersized version of the 215cc cylinder head that recently claimed the quickest heads cam record!! The 237cc port is designed for customers with 4"+ bore applications looking for a max effort cathedral port cylinder head!
The 237cc cylinder head ships with the following:
Flow Data:
Lift Intake Exhaust
.100" 66 cfm 57 cfm
.200" 147 cfm 117 cfm
.300" 225 cfm 170 cfm
.400" 284 cfm 206 cfm
.500" 325 cfm 227 cfm
.600" 334 cfm 235 cfm
.650" 339 cfm 241 cfm
More info available at:
http://www.texas-speed.com/shop/item...d=992&catid=20
Preordering for 215, 227 & 237cc versions available with estimated ship time of mid Jan.
The 237cc port is a supersized version of the 215cc cylinder head that recently claimed the quickest heads cam record!! The 237cc port is designed for customers with 4"+ bore applications looking for a max effort cathedral port cylinder head!
The 237cc cylinder head ships with the following:
- 2.100" Stainless Intake Valves
- 1.600" Stainless Exhaust Valves
- PRC Double Spring Kit (.650" Lift)
- 68cc CNC Machined Chambers
- Provisions for Stock Rocker Arms or Aftermarket Rockers
- Increased valve cover clearance for aftermarket rocker systems
- Thick Deck for better sealing in power adder applications
- 6 bolt option standard for LSx blocks!
- .700" Valve Spring Upgrade Available!!
Flow Data:
Lift Intake Exhaust
.100" 66 cfm 57 cfm
.200" 147 cfm 117 cfm
.300" 225 cfm 170 cfm
.400" 284 cfm 206 cfm
.500" 325 cfm 227 cfm
.600" 334 cfm 235 cfm
.650" 339 cfm 241 cfm
More info available at:
http://www.texas-speed.com/shop/item...d=992&catid=20
Preordering for 215, 227 & 237cc versions available with estimated ship time of mid Jan.
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Teching In
Joined: Jul 2008
Posts: 6
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From: Lone Star State
They look awesome Jason. I know this was a long process for you guys and alot of thought and hard work has gone into this or any PRC product for that matter. There are alot of mediocre heads in the LSX industry. This looks like a GREAT product as usual from PRC!!
Zach
Zach
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LS1Tech Premium Sponsor
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From: Texas!
Thanks for the messages guys! We will have different valve options available, hollow stem / titanium, etc....
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Thread Starter
LS1Tech Premium Sponsor
iTrader: (4)
Joined: Nov 2001
Posts: 4,229
Likes: 4
From: Texas!
Mr. WKMCD they're right at .700" if memory serves me correctly. 
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
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Compare these heads to the TFS 235cc heads on a 4.030" bore fixture (the exhaust #'s are not compareable as the TFS heads are with a 1 7/8" pipe vs no pipe for TSP)
How's every thing going with this head are they shipping yet?
How are they vs the 6bolt trickflow 235 heads?
Is there any way to get the warhawk bolt pattern on this?
Is there any room for hand porting?
How are they vs the 6bolt trickflow 235 heads?
Is there any way to get the warhawk bolt pattern on this?
Is there any room for hand porting?
Last edited by BigRich954RR; Dec 29, 2008 at 12:31 PM.