Allstar Performance 31100 : Water Pump, Mechanical, 0.625" Pilot, Aluminum, Short Design, Small Block Chevy

Allstar Performance 31100 : Water Pump, Mechanical, 0.625" Pilot, Aluminum, Short Design, Small Block Chevy

ALL-31100

Regular price$114.99
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Shipping calculated at checkout.

Popular “short style” water pump that was originally used on pre-1969 small block Chevrolets. Pumps are built using all new components and an aluminum body for added weight savings over original cast iron pumps. Pump features a 3/4" main shaft and bearings with a 5/8" pilot and a billet steel hub drilled for both small and large fan bolt patterns making this a good choice for street and mild performance vehicles. Block mount to fan hub dimension is 5-5/8". This pump is recommended for use with mechanical fans over 5,000 RPM. Above this RPM, use the ALL-31105 pump with a 3/4" shaft/bearing. NOTE : Water pumps may need to be clearanced for use with 8" dampers.


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Racing Helmets

helmet size measurement metric
XS 6-5/8 to 6-3/4 20-7/8 to 21-1/4 53 to 54
S 6-7/8 to 7 21-5/8 to 22 55 to 56
M 7-1/8 to 7-1/4 22-3/8 to 22-3/4 57 to 58
L 7-3/8 to 7-1/2 23-1/8 to 23-1/2 59 to 60
XL 7-5/8 to 7-3/4 23-7/8 to 24-1/4 61 to 62
2XL 7-7/8 to 8 24-3/4 to 25-1/8 63 to 64

CMR Helmets

helmet size measurement metric
XS 6-1/2 to 6-5/8 20-1/2 to 20-7/8 52 to 53
S 6-3/4 to 6-7/8 21-1/4 to 21-5/8 54 to 55
M 6-7/8 to 7 21-5/8 to 22 55 to 56
L 7-1/8 to 7-1/4 22-3/8 to 23-3/4 57 to 58

Rookie Helmets

helmet size measurement metric
One size 6-3/4 to 7 21-1/4 to 22 54 to 56

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