Small Block Chevy Oiling System Improvements

World Products 084135RC-904 Motown II Cast Iron Block Features:

• 0.134 in. raised cam bore that has been sized to accept a 50 mm roller cam bearing which will allow as much as a 4 in. stroke with 6 in. H-beam rods.
• Bushed and indexed lifter bores sized at 0.904 in. provide accurate pushrod alignment and valvetrain stability.
• 400 Chevy diameter (0.2841 in.) billet steel 4 bolt splayed main bearing caps are located by dowel pins and a deep step design to allow for 700 HP plus in naturally aspirated or boosted applications.
• Standard Chevy block deck height of 9.025 in. has been improved with a minimum of .600 in. thickness.
• Siamese design cylinder bores sized at 4.125 in. eliminate the need for steam holes and can be bored to 4.185 in. 

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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