• 4.000 in. (2)
• 3.468 in. (1)
• 3.498 in. (1)
• 3.780 in. (1)
• 4.030 in. (1)
• 4.040 in. (1)
• 4.060 in. (1)
• 4.270 in. (1)
• 4.280 in. (1)
• 4.290 in. (1)
• 4.320 in. (1)
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• 101.600mm (2)
• 102.362mm (1)
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• 108.458mm (1)
• 108.712mm (1)
• 108.966mm (1)
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• 111.049mm (1)
• 111.252mm (1)

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• 3.375 in. (1)
• 3.480 in. (5)
• 3.750 in. (4)
• 4.000 in. (3)

• 5.700 in. (5)
• 6.768 in. (4)
• 6.135 in. (3)
• 6.358 in. (1)

• Flat top, with four valve reliefs (8)
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• Flat top, with single valve relief (3)
• Dish, with four valve reliefs (1)
• Dish, with no valve reliefs (1)

• Forged aluminum (12)
• Cast aluminum (4)

• 1.563 in. (4)
• 2.061 in. (4)
• 1.640 in. (3)
• 1.977 in. (2)
• 1.562 in. (1)
• 1.813 in. (1)
• 1.835 in. (1)

• +6.10cc (4)
• +7.00cc (4)
• +4.90cc (3)
• 0.00cc (3)

• 0.927 in. (5)
• 1.094 in. (5)
• 0.989 in. (3)
• 0.859 in. (2)
• 0.940 in. (1)

• 5/64 in. x 5/64 in. x 3/16 in. (14)
• 3/32 in. x 3/32 in. x 5/32 in. x 5/32 in. (2)

• Stock Replacement (16)