MR-1 Block Page. MR-1 Cast Iron blocks are cast from high quality cast iron and have held up to over 2000 HP in KRE's Pro Mod car as well as Brad Smuland's Turbo Top Sportsman ride
Pic of Brad's car when he was still running NOS He is now checking on a new chassis to handle the power he now has.
Cast Iron MR-1
NHRA accepted for stock and super stock classes
Blocks bored for a particular hone size $100.00
Decks cut with CBN cutter
Made from high quality cast iron.
has thick deck (good for head gasket sealing).
Comes standard with splayed billet main caps.
No water jacket penetration at clutch ball.
capable of large bore and stroke.
dual bell housing bolt pattern.
Uses Std. Pontiac roller lifters(Crower as well as other brands.
Std. Oil pump drive rod.
Press in freeze plugs ( No header freeze plug interference issues.
No oil pan clearance issues.
Correct water passages in deck, no drilling needed matches holes in head gaskets.
No timing cover fit issues.
Extras
3 inch or 3 1/4 main bore option no cost except if using 3 1/4 option block must be paid in full before machining starts.
50 mm cam bearings $125.00
50mm cam bore free upgrade
55mm cam bore upgrade $150.00
55mm cam bearings $150.00
Bronze lifter bore bushings $290.00 installed
.937 lifter bore upgrade $150.00 but only with the bronze lifter bore option
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