What grade for engine mount bolts?
Grade 8 works in some areas, but I prefer the larger diameter AN – less slop. I also use some MS hardware in a few spots – like jetnuts and tension bolts (even larger diameter) in shock and bell crank mounts. AN/MS is best, but Grade 8 is sufficient for almost all applications on these types of cars.
What are the Chevy motor sizes?
Chevy V8’s have come with stock displacements of: 262, 265, 283, 302, 305, 307, 327, 350 and 400 cubic inches.
What is the difference between 8.8 and 10.9 bolts?
Class 10.9 is stronger than class 8.8. It is commonly found in high strength automotive applications. Class 10.9 is similar to grade 8. A low carbon steel for general use.
What size are flywheel bolts on SBC?
7/16-20 X .900
Product Specifications
| Callout Size: | 7/16-20 X .900 |
|---|---|
| Material: | Steel |
| Metric Or SAE: | SAE |
| Thread Diameter: | 7/16 |
| Thread Pitch: | 20 in |
Are Grade 10 bolts stronger than Grade 8?
Each grade has a specific bolt strength. No matter the system used to grade the bolts, the higher number means the stronger the bolt. For most home and automotive applications, you won’t need anything more than a grade 8 bolt strength or metric class 10.9.
Are flywheel bolts and flexplate bolts the same?
Flywheel bolts and flexplate bolts both have thin heads. The difference is only the length. You shouldn’t use the wrong ones – too long and they hit the back of the block, too short and they won’t hold the flywheel.
What tools are needed to replace engine mounts?
Tools and Equipment Needed to Replace a Motor Mount
- Block of wood.
- Pry bar.
- Hammer.
- Ratchet and socket set.
- Repair manual or access to a repair database.
- Safety glasses.
- Torque wrench.
- Wheel chocks.