67 GTS 4-Speed: Daily Summer Driver
Okay, this past weekend I was able to go home and get the zero lash measurements. Then today after work I was able to use a height gage to take some measurements of the rods and these are my numbers:
The base lengths of the rods and their respective places:
The measurements I took with the rod measurement tool that would take the rods to the zero lash:
Then here are those values combined to get the rod lengths that will get me to zero lash rod lengths:
According to the information I got with the cam I am suppose to have .020-.060 preload on the lifts. Which means I need add those preload values onto the zero lash rod lengths:
I looked on comp cams website and they do have the 5/16 push rods that fall between the averages 8.527-8.487. Those sizes are 8.500 and 8.492. Does all of this make sense? am I going in the right direction?
and in other news! I was able to get the radio installed in the dash but realized I did not have the rear radio bracket... so I have to modify one I just got on ebay, but I also got the rest of the dash trim installed that was restored by instrument specialties. Looks pretty awesome!!
Okay, this past weekend I was able to go home and get the zero lash measurements. Then today after work I was able to use a height gage to take some measurements of the rods and these are my numbers:
The base lengths of the rods and their respective places:
| 383 Base measurements | |||||
| 1 | I | 8.561 | 2 | I | 8.553 |
| E | 8.559 | E | 8.547 | ||
| 3 | I | 8.553 | 4 | I | 8.552 |
| E | 8.554 | E | 8.549 | ||
| 5 | I | 8.562 | 6 | I | 8.555 |
| E | 8.554 | E | 8.552 | ||
| 7 | I | 8.562 | 8 | I | 8.549 |
| E | 8.562 | E | 8.549 | ||
| Average | 8.554563 | ||||
| Max | 8.562 | ||||
| Min | 8.547 |
The measurements I took with the rod measurement tool that would take the rods to the zero lash:
| 383 Rod Zero lash measurements | |||||
| 1 | I | 0.09 | 2 | I | 0.092 |
| E | 0.085 | E | 0.088 | ||
| 3 | I | 0.125 | 4 | I | 0.07 |
| E | 0.075 | E | 0.061 | ||
| 5 | I | 0.086 | 6 | I | 0.1 |
| E | 0.078 | E | 0.083 | ||
| 7 | I | 0.125 | 8 | I | 0.084 |
| E | 0.08 | E | 0.075 | ||
| Average | 0.087313 | ||||
| Max | 0.125 | ||||
| Min | 0.061 |
Then here are those values combined to get the rod lengths that will get me to zero lash rod lengths:
| 383 Zero Lash Rod Lengths | |||||
| 1 | I | 8.471 | 2 | I | 8.461 |
| E | 8.474 | E | 8.459 | ||
| 3 | I | 8.428 | 4 | I | 8.482 |
| E | 8.479 | E | 8.488 | ||
| 5 | I | 8.476 | 6 | I | 8.455 |
| E | 8.476 | E | 8.469 | ||
| 7 | I | 8.437 | 8 | I | 8.465 |
| E | 8.482 | E | 8.474 | ||
| Average | 8.46725 | ||||
| Max | 8.488 | ||||
| Min | 8.428 |
According to the information I got with the cam I am suppose to have .020-.060 preload on the lifts. Which means I need add those preload values onto the zero lash rod lengths:
| 383 Zero lash Rod lengths plus .020 preload | |||||
| 1 | I | 8.491 | 2 | I | 8.481 |
| E | 8.494 | E | 8.479 | ||
| 3 | I | 8.448 | 4 | I | 8.502 |
| E | 8.499 | E | 8.508 | ||
| 5 | I | 8.496 | 6 | I | 8.475 |
| E | 8.496 | E | 8.489 | ||
| 7 | I | 8.457 | 8 | I | 8.485 |
| E | 8.502 | E | 8.494 | ||
| Average | 8.48725 | ||||
| Max | 8.508 | ||||
| Min | 8.448 |
| 383 Zero lash Rod lengths plus .060 preload | |||||
| 1 | I | 8.531 | 2 | I | 8.521 |
| E | 8.534 | E | 8.519 | ||
| 3 | I | 8.488 | 4 | I | 8.542 |
| E | 8.539 | E | 8.548 | ||
| 5 | I | 8.536 | 6 | I | 8.515 |
| E | 8.536 | E | 8.529 | ||
| 7 | I | 8.497 | 8 | I | 8.525 |
| E | 8.542 | E | 8.534 | ||
| Average | 8.52725 | ||||
| Max | 8.548 | ||||
| Min | 8.488 |
I looked on comp cams website and they do have the 5/16 push rods that fall between the averages 8.527-8.487. Those sizes are 8.500 and 8.492. Does all of this make sense? am I going in the right direction?
and in other news! I was able to get the radio installed in the dash but realized I did not have the rear radio bracket... so I have to modify one I just got on ebay, but I also got the rest of the dash trim installed that was restored by instrument specialties. Looks pretty awesome!!
