Speedmaster Master Edition One | Page 97

HEAD GASKETS

The SM3141 4-cyl. head is designed around an OEM head gasket. Use Mopar # P4452006. We recommend you use Fel Pro head gaskets under our Speedmaster # SM3065, SM3068 & SM3068VJ heads. Use Fel P5ro # 1009 or 1105( big bore) On Speedmaster SM3131 we recommend the Fel Pro # 519SD( on Magnum Engines), or # 1008( on LA-series Engines). For the new Speedmaster SM3048 Aluminum heads, we only recommend using Speedmaster # SM5217 or Felpro # 1008 head gaskets.

HEAD BOLTS / STUDS

For the SM3414 4-cyl. head, use ARP # 241-3701( bolts) or # 241-4701( studs), and follow ARP’ s recommended torque values. Also, make sure you follow the OEM torque sequence! For the SM3065, SM3068 and SM3068VJ use Speedmaster head stud kit SM2460. Torque to 65lbs. using high pressure Moly lube on the threads and under the heads. The Arp #’ s for the Big Block 440 heads are # 145-3609( bolts) and # 145-4206( studs) For the Small Block Chrysler heads, use Speedmaster SM2459 head stud kit and torque the heads to 65lbs with Moly Lube.

SPARKPLUGS

For the 4-cyl. Chrysler head, use the following: Autolite 65, or AP65 Champion RN12YC or 3405 NGK GR4 or GR4GP

For the V8 Chrysler heads, the following is a small list of spark plugs you can use: NGK- BCPR6ES, R5671A-7, R5671A-8 Autolite- 3923, 3924, AR3933, AR3934 Champion- RC12YC, RC10YC4, RC9YC3

Remember that you need a COLDER plug when you make more power, ie. N2O, turbo and Supercharging

All Speedmaster alloy cylinder heads are made using a superior“ gravity die cast” process. These heads are flow tested on a Superflow SF600 at 28 inches with a 1 / 2 inch radius intake plate and short stack exhaust tube. All Speedmaster CNC Cylinder heads have been professionally CNC Ported in-house with the Rottler P55, our revolutionary 5 Axis CNC Cylinder Head Porting Machine.

SM3151 _ SM3151C _

1984 / 5- on Toyota 22R / 22RE Head 1984 / 5- on Toyota 22R / 22RE Complete Head( incl cam, w / o rockers)

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