Ported THUMPER Head
#1
05-15-2007, 05:44 AM
Join Date: Aug 2002
Location: Orange Park, Fl.
Posts: 510
Likes: 0
Received 0 Likes
on
0 Posts
Ported THUMPER Head
These Heads are reconditioned to Performance Specs by: "Thumper Performance of Orange Park"
HEAD is CUSTOM Ported to your needs and Performance . Individual Head for MCS and the MC !! Both the Intake and Exhaust Bowls have gone thru extensive Bowl re-work. Opening, smoothing, blending, modifying the Valve boss to direct and increase air flow, with attention to the short radius. Intake Ports are matched to gasket size, Ported and smoothed into the Port to the bowl. Exhaust is Ported to gasket, then opened to allow more airflow from the Supercharger, with port blending and reshaping deep into the Bowl, and then Polished.
To maintain Port Velocity, the stock valve size is retained with a Performance valve job, and a " Flow" back cut on the valve to increase low lift flow at the valve and seat, for higher velocity and faster cylinder filling. This keeps the low and increases mid-power range!! ( no flat spots here !)
The Chambers have the "hot spots" blended to prevent detonation. HEAD is surfaced flat to insure seal, and will allow 18- 35 HP at the wheels, depending on mods!!
On cars like yours with the basic mods to pull 180-190 SAE WHP, with our HEAD they pulled 222 actual HP at the wheels ( 211 SAE(240+ BHP) with a STOCK I/C, CAM, and Header, and ECU !!
$1195.00 PAYPAL OK!! FREE* Shipping !!
*** Refundable Core Fees of $500.00 will be ADDED to the cost and Happily REFUNDED when your Good core is received within 15 Days!
Add'l Valve type and sizes available..
Thanks
Thumper460@hotmail.com
HEAD is CUSTOM Ported to your needs and Performance . Individual Head for MCS and the MC !! Both the Intake and Exhaust Bowls have gone thru extensive Bowl re-work. Opening, smoothing, blending, modifying the Valve boss to direct and increase air flow, with attention to the short radius. Intake Ports are matched to gasket size, Ported and smoothed into the Port to the bowl. Exhaust is Ported to gasket, then opened to allow more airflow from the Supercharger, with port blending and reshaping deep into the Bowl, and then Polished.
To maintain Port Velocity, the stock valve size is retained with a Performance valve job, and a " Flow" back cut on the valve to increase low lift flow at the valve and seat, for higher velocity and faster cylinder filling. This keeps the low and increases mid-power range!! ( no flat spots here !)
The Chambers have the "hot spots" blended to prevent detonation. HEAD is surfaced flat to insure seal, and will allow 18- 35 HP at the wheels, depending on mods!!
On cars like yours with the basic mods to pull 180-190 SAE WHP, with our HEAD they pulled 222 actual HP at the wheels ( 211 SAE(240+ BHP) with a STOCK I/C, CAM, and Header, and ECU !!
$1195.00 PAYPAL OK!! FREE* Shipping !!
*** Refundable Core Fees of $500.00 will be ADDED to the cost and Happily REFUNDED when your Good core is received within 15 Days!
Add'l Valve type and sizes available..
Thanks
Thumper460@hotmail.com
Last edited by Thumper460; 09-12-2009 at 10:08 AM.
#2
05-15-2007, 11:27 AM
Join Date: Aug 2002
Location: Orange Park, Fl.
Posts: 510
Likes: 0
Received 0 Likes
on
0 Posts
PS.. If you want to keep the JCW Head !! Send your JCW and in 10-14 days you will have it back.. PORTED Bolt on ready!!
Thanks
Thumper
Thanks
Thumper
Thread
Thread Starter
Forum
Replies
Last Post
Navigation & Audio HK Replacement With New Components
Filmy
Navigation & Audio
15
06-06-2023 06:27 AM
SneedSpeed
Vendor Announcements
0
09-10-2015 07:22 AM