| LA SMALL BLOCKS |
| YEARS | CID | STROKE | BORE |
| '64 to '69 | 273 | 3.31 | 3.63 |
| '67 to '02 | 318 | 3.31 | 3.91 |
| '68 to '73 | 340 | 3.31 | 4.04 |
| '71 to '92 | 360 | 3.58 | 4.00 |
| '92 to '02 | 360 | 3.58 | 4.00 (Magnum) |
The term Mopar was first used by Chrysler in the '20s.
 The engine is delivered with...  The engine is delivered with an 8-quart-deep, center wet-sump oil pan that is internally baffled to keep the oil from flowing away from the pickup. It is listed as "fitting most production chassis," so check your application. |  On the dyno, we turned the...  On the dyno, we turned the idle mixture screws out 11/2 turns on the center carb and ran the engine to 6,200 rpm. The A/F ratio was a respectable 12.5:1, and the engine was barely trying when it made 469 hp at 5,700 and 490 lb-ft at 4,200 rpm. Too easy. |  The cylinder heads for the...  The cylinder heads for the 410 use a 63cc chamber, 2.02/1.60 valves, and have a 171cc intake port. Unlike the '92-later Magnum heads, they use a shaft-style rocker arm setup. If you want to bolt on a set of ball-stud LA heads with the pushrod oiling system, you can do that too. Just be sure to use the correct head gasket with the factory oiling holes. |