Insert Technically Speaking
INSERT BEARING CRANKSHAFT
& HOUSING BORE SIZES
Connecting Rods
| CRANKSHAFT ROD JOURNAL SIZE STANDARD |
1.4990/1.5000 |
| CRANKSHAFT ROD JOURNAL SIZE .001 UNDERSIZE |
1.4980/1.4990 |
| CRANKSHAFT ROD JOURNAL SIZE .010 UNDERSIZE |
1.4890/1.4900 |
| CRANKSHAFT ROD JOURNAL SIZE .020 UNDERSIZE |
1.4790/1.4800 |
| CRANKSHAFT ROD JOURNAL SIZE .030 UNDERSIZE |
1.4690/1.4700 |
| CRANKSHAFT ROD JOURNAL SIZE .040 UNDERSIZE |
1.4590/1.4600 |
| CRANKSHAFT ROD JOURNAL SIZE .060 UNDERSIZE |
1.4390/1.4400 |
| .001 ARE FOR THE BURLINGTON CRANKSHAFT |
Main Bearings
| CRANKSHAFT MAIN JOURNAL SIZE STANDARD |
1.6254/1.6259 |
| CRANKSHAFT MAIN JOURNAL SIZE .002 UNDERSIZE |
1.6234/1.6239 |
| CRANKSHAFT MAIN JOURNAL SIZE .010 UNDERSIZE |
1.6154/1.6159 |
| CRANKSHAFT MAIN JOURNAL SIZE .020 UNDERSIZE |
1.6054/1.6059 |
| CRANKSHAFT MAIN JOURNAL SIZE .030 UNDERSIZE |
1.5954/1.5959 |
| CRANKSHAFT MAIN JOURNAL SIZE .040 UNDERSIZE |
1.5854/1.5859 |
| .002 ARE FOR THE BURLINGTON CRANKSHAFT |
| HOUSING BORE IN BLOCK |
1.7705/1.7710 |
The back of the rear main bearing block and cap is to be counter bored .125 deep and 2.250 diameter.
The rear thrust washers are held in place by counter bore and crankshaft. The block thrust washer is to be doweled to the block to prevent rotating. Thrust washers are not to be attached or secured as this can cause end loading and abnormal wear.
The front of the rear main bearing block only is counter bored .125 deep and 2.250 diameter.
The front thrust washer is held in place by counter bore and crankshaft. The cap not counter bored will prevent the thrust washer from rotating. Again the thrust washer is not secured to the block.
We recommend the use of lined bearings with the model A crankshaft. Bearings are in stock at competitive pricing.
| CONNECTING ROD SET WITH BEARINGS FOR MODEL A PISTON |
$635.00 |
| CONNECTING ROD BEARINGS SET OF 8 FOR 4 RODS |
$55.00 |
| MAIN BEARINGS SET OF 6 FOR 1 BLOCK |
$93.50 |
| THRUST WASHERS SET OF 3 FOR 1 BLOCK |
$38.14 |
Connecting Rods
| CRANKSHAFT ROD JOURNAL SIZE STANDARD |
1.8720/1.8730 |
| CRANKSHAFT ROD JOURNAL SIZE .010 UNDERSIZE |
1.8620/1.8630 |
| CRANKSHAFT ROD JOURNAL SIZE .020 UNDERSIZE |
1.8520/1.8530 |
| CRANKSHAFT ROD JOURNAL SIZE .030 UNDERSIZE |
1.8420/1.8430 |
| CRANKSHAFT ROD JOURNAL SIZE .040 UNDERSIZE |
1.8320/1.8330 |
| CRANKSHAFT ROD JOURNAL SIZE .060 UNDERSIZE |
1.8120/1.8130 |
Main Bearings
| CRANKSHAFT MAIN JOURNAL SIZE STANDARD |
1.9990/1.9985 |
| CRANKSHAFT MAIN JOURNAL SIZE .010 UNDERSIZE |
1.9890/1.9885 |
| CRANKSHAFT MAIN JOURNAL SIZE .020 UNDERSIZE |
1.9790/1.9785 |
| CRANKSHAFT MAIN JOURNAL SIZE .030 UNDERSIZE |
1.9690/1.9685 |
| CRANKSHAFT MAIN JOURNAL SIZE .040 UNDERSIZE |
1.9590/1.9585 |
| CRANKSHAFT MAIN JOURNAL SIZE .060 UNDERSIZE |
1.9390/1.9385 |
| HOUSING BORE IN BLOCK |
2.1350/2.1345 |
The back of the rear main bearing block and cap is to be counter bored .125 deep and 2.875 diameter. The rear thrust washers are held in place by counter bore and crankshaft. The block thrust washer is to be doweled to the block to prevent rotating. Thrust washers are not to be attached or secured as this can cause end loading and abnormal wear.
The front of the rear main bearing block only is counter bored .125 deep and 2.875 diameter. The front thrust washer is held in place by counter bore and crankshaft. The cap not counter bored will prevent the thrust washer from rotating. Again the thrust washer is not secured to the block.
We recommend the use of lined bearings with the model B crankshaft. Bearings are in stock at competitive pricing.
| CONNECTING ROD SET WITH BEARINGS FOR MODEL A PISTON |
$770.00 |
| CONNECTING ROD BEARINGS SET OF 8 FOR 4 RODS |
$ 55.00 |
| MAIN BEARINGS SET OF 6 FOR 1 BLOCK |
$ 99.00 |
| THRUST WASHERS SET OF 3 FOR 1 BLOCK |
$ 38.14 |
