Crackerbox Notes

Inboard Profile

Cockpit width: 46"



Conversion & underwater hardware for a small block Chevy

This is a typical list of hardware for the Crackerbox. The Crackerbox was originally designed as a race boat. These boats did not use transmissions or any shifting mechanism; it was turn the key and go. Because of the short length of the boat, it is difficult to use a transmission (13" additional length). In order to keep a reasonable shaft angle (15o or less), the motor must be moved forward and/or the rudder installed on the back of the boat. One local builder was able to use a Velvet Drive transmission and still maintain a 12o angle by using a motor with a "low profile" oil pan.

The installation listed below is "typical", i.e. no transmission and normal underwater rudder. If you would like to use a transmission, substitute Item 99-231 for the 99-000 Bobtail Conversion Kit. A Transom Rudder Bracket is often used to move the rudder aft in order to accommodate a transmission or reduce shaft angle.

The prices below are meant for estimating installation cost only. Prices are current as of November 2011; check the Price List in the "Inboard Hardware" pages to confirm prices. Additional items: motor, hose for exhaust ports, steering, throttle control, and gauges.

ITEM DESCRIPTION QUAN PRICE TOTAL
99000 STANDARD SM BLK CHEV
BOBTAIL CONVERSION
1 - 2380.50
90767*** CHAIN COUPLING 1 - 215.00
90730 WATER PICK UP 3/4" 1 - 45.45
9073_* PROP SHAFT 1 - 211.00
90116* STRUT, 14 OR 16 DEG IF USING A TRANSMISSION 1 - 265.00
90352 BEARING FOR ABOVE 1 - 79.50
90195 SHAFT LOG 1 - 99.50
90232 HOSE 1 - 9.95
90818 HOSE CLAMPS 2 2.10 4.20
90223 STUFFING BOX 1 - 39.50
14-289 FIN, FLAT BASE 1 - 53.00
90009 SPEED RUDDER, 1 1/8" 1 - 295.00
90103 RUD STUFFING BOX 1 - 106.50
90033 RUD POST BRKT 1 1/8" 1 - 76.50
90029 TILLER ARM 1 1/8" 1 - 43.00
90461 SAFETY COLLAR 1" (SHAFT) 1 - 22.50
90462 SAFETY COLLAR 1 1/8" (RUDDER) 1 - 22.50
05-020 BOW EYE 1 - 42.50
90752** EXHAUST PORT, CHR 2 7/8" 2 158.50 317.00
Total: $4,328.10
* Specify degree/length
** May want to use 90750 POL ALUM @ $78.75 ea
*** The chain coupling is the most common and most desirable way to hook up to the prop shaft when not using a transmission. If this option is used, deduct the 90793 flywheel power takeoff from the conversion kit. A less common method is to use the flywheel power takeoff plus item 90864B (1") flange takeoff. The flywheel adapter bolts to the flywheel and has 4 holes to which the 90864B bolts. The 90864B accepts a 1" prop shaft. The flywheel installation requires the motor to be higher in the boat and is seldom used.


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