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"Pocket Port" Heads.
Performance castings big valve 40mm or step up to 42mm intake x 35mm
exhaust valves. This is a popular head for street cars and track turbo combos.
The most head for your $$$$. These heads flow over 145cfm at a low .500" lift
and can make over 250hp on turbo combos. This is a hot street head for turbo
combos or off road big motors that want air speed for that low end torque.
" Pocket Port Heads come with these features:
* Dual Port
* Fits without modifications to your stock sheet metal.
* 3/4" reach 12mm spark plug holes moved up and over to give more meat so there is no chance of cracks.
* Thick solid chamber blocks to dissipate heat and if you want to fly cut the chambers a lot, its no problem.
* Solid rocker blocks so you can't pull out the rocker studs like the old days.
* Racer 3 angle long last, high flow valve job. (No cheep single angle valve job with our heads)
* Performance back-cut of the intake valves for extra intake flow. Stock or CNC heads don't have this!
* Stainless Steel 40mm intake valve x 35.5mm exhaust valves
* Dual High-Rev performance long last valve springs for that extra rpm protection.
* Light weight chromoly 4130 spring retainers (stronger than stock stamp steel retainers)
* Hardened heat treated valve keepers. (stronger than stock keepers).
* Aluminum-Silicone-Bronze long last valve guides.
* Bore open for 85.5, 87, 88, 90.5, 92 or 94mm free!!
* Hand Pocket Port of the intake ports.
* Match Port of your manifolds to the intake ports.
* Complete hand shaped chamber and chase cc to what your combo needs. (up to 65cc chambers)
* Port off exhaust guides.!! ( on turbos the exhaust guide can get so hot that the guide can flake off and
make its way to your turbo) can you say BOOM!!
* Racer trim the intake guides for more flow and horse power!
* Each valve spring is shimmed per your cam and rocker combo for the correct spring pressure.
*All exhaust and intake studs are included.
* Thick Intake gaskets are included.
* 1x set of Heavy duty rocker studs are included.
* Oiled and assembled for true bolt-on out of the box set of heads!
$1699.99 pair complete.
You can add to your head order:
* Step up to 42mm intake valve and seats add $150 * Titanium retainers add $75
What is Pocket Port?
Pocket port is a clean-up port job. This is great for turbo or street motors that don't need the large ports but want the air speed
and to make low rpm torque.
On 1915cc with 40mm carbs makes avg 120hp and 115tq at the wheels.
2110cc with a sing 40mm carbs make 140hp and 160tq.
Turbo 1915 200hp and 200tq.
Turbo 2276cc 256hp and 258tq.
Turbo 2387cc 300hp 290tq.
Tested in our 190hp 230tq pump gas 2054cc turbo car for over 50,000 miles.
2004 SCCA and NASA Solo 2 DM Champion Barret Camper use 40x35 Pocket Ports.
2005 SCCA and NASA EM Solo Champion Barret Camper use 40x35 Pocket Ports.
2007 Carrera Panamericana Race. #1 VW to finish 3rd over all Barret Camper use 40x35 Pocket Ports.
To place your Order click here Or to send off an e-mail with your question: A.J.Sims Heads
Call the shop for all your questions. 714-639-4284
Here is the most common size bore and chambers.
If they fit your combo you save on a flat shipping fee of only $29.99
90.5/ 92mm with 55cc 90.5/92mm with 60cc 94mm bore with 55cc 94mm bore with 60cc
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