What year is a GM 3970010?
| Details for 3970010 | |
|---|---|
| Manufacturer | Chevrolet |
| Category | Engine Blocks |
| Type | Small Block V8 |
| Date | 1969 |
What size motor is a 3970010?
| Casting Number | cu. in. | Notes |
|---|---|---|
| 3970010 | 327 | 2 bolt main bearings – trucks |
| 3970010 | 350 | 2 or 4 bolt main bearings |
| 3970014 | 350 | 2 or 4 bolt main bearings |
| 3970020 | 307 | 2 bolt main bearings |
How do you identify a block?
The simplest way to identify an engine block is to go by the casting number. These alphanumeric codes generally identify a particular block’s series number, displacement range, casting location and date of manufacture. Location varies by manufacturer and engine type.
How do I know if I have a V8 engine?
V8 codes are stamped on a pad just forward of the right side (passenger) cylinder head. The engine date must precede the car build date, otherwise something is amiss. Some engine machining operations (decking) will obliterate the engine ID.
Is 302 better than 351w?
So for equal money, a 351 will have more cubes, more low end torque, and a lower RPM peak. A 302 will have the same HP, but a slightly higher tq peak with lower tq numbers. In almost any situation, cubes are better. Unless you can make your goals cheaper with the super-cheap 302.
How do I know if I have a 305 or 350?
Matching the suffix portion of the engine ID number properly identifies the engine as a 305 or 350 cubic-inch. If a bore measurement is to be taken, Popular Hot Rodding identifies the 305s small bore at 3.736 inches. Both the 305 and 350 have the same 3.48-inch stroke.
How much HP do heads add?
Head porting is probably the single most critical piece of adding HP. you can gain 20-30 from a really good port job.
Are Chevy 305 and 350 heads the same?
Different, basically the L31, 350 Vortec head is a new design with different ports and chambers. The LO3, 305 is the same old 305 head with a new name.
What year is the best Chevy 305 engine?
1986 Chevy 305 Engine The 1986 Chevy 305 was one of the most powerful of the modifications to this engine.
Is a Chevy 305 a good motor?
Despite sharing the same designation as the ever-popular 5.0L from the Ford camp, the 305 Chevy is viewed as a second-class citizen in the Chevy hobby. In reality, 305 Chevys (including our carbureted LG4 version) make great street engines and can be the basis for impressive performance machines.
How much HP can a Chevy 305 make?
A twin turbo 305 will make somewhere north of 500 HP. It’ll cost you 10K at least… A TBI 305 with HO parts will make 280 HP fairly easily.
Is a 305 worth rebuilding?
With the quotes so far for rebuilds of the 305, range anywhere from $1100 to $4000, from basic rebuild to upgrading pistons, rods, cam and so on.. If it needs to go to a machine shop for anything more than tanking, just get a 350. 305 heads are worth rebuilding, even for a 350.
How much horsepower do headers add to a 305?
A 28 HP increase over the stock heads, and the 305 engine now has close to 300 HP.
How can I get more power out of my 305?
Bolt-on Upgrades
- Replace the exhaust manifold. The stock exhaust manifold of the 305 engine restricts air flow from the engine increasing back pressure.
- Replace the intake manifold and carburetor.
- Add cold air induction.
- Replace the computer chip.
How much horsepower does a 454 have?
The 454 EFI version was rated from 230 hp (172 kW) to 255 hp (190 kW) and from 385 lb⋅ft (522 N⋅m) to 405 lb⋅ft (549 N⋅m) of torque.