What are the torque specs for a 350 Chevy?

What are the torque specs for a 350 Chevy?

Main-cap torque specification on the typical Chevrolet 350 two-bolt-main engine is 70 ft. -lbs. Specifications for the four-bolt-main are 70 ft. -lbs for the inner bolts, 65 ft.

How much torque does a 350 small block have?

Like the 302, it was based on the 327 block, but the 350 had an all-new crankshaft with a 3.48-inch stroke. The first version, dubbed the L-48, produced 295 horsepower and 380 lb-ft of torque. The 350 became available in the Nova in 1968 and in its third year it was optional across the Chevrolet passenger car line.

What is the torque spec on the oil pan bolts?

Engine oil pan bolts range in torque from seven foot-pounds to 22 ft-lb or more for large engines with heavier pans and bolts. Once you’ve torqued the bolts and filled the engine with oil, you should run the engine for five minutes to bring it up to normal operating temperature.

How much horsepower would a stock 400 SBC with Vortec heads?

376 hp

Will SBC 400 heads work on a 350?

You can put 400 heads on a 350 but you should not put 350 heads on a 400 without drilling the steam holes.

What is a 406 SBC?

A 406 is just a .030 over bore on a 400’s standard bore. Heres my combo- very cheap way to go and has some punch for a cruiser- 400- 2 bolt block .030. stock crank, rods, cast pistons.

What size heads for 400 SBC?

A hot 400 SBC can easily use a head with 200+ cc intake port volume. 180cc will work OK, but will run out of breathe real quick. My 383 uses 210cc heads with 2.05 intakes.

Will LS heads fit a 350?

They will not fit. The bolt pattern is completly diffrent from a gen 1 to a gen 3. They are completely different engines so no, they won’t fit. However the SBC engine has more high performance parts available for it than any other engine.

Can you put LS heads on SBC?

Just to be clear: You can’t bolt LS heads on a Chevy small-block. You can’t even do it on one of World’s regular Motown blocks. With the block designed to use LS heads and LS lifter positions, the engine must also be capable of accommodating an LS valvetrain.

Will LS heads fit a Ford?

LS1 heads on a SBF–Yes, they fit…

Will 305 heads fit on a 350?

305 heads on a 350 will raise your compression a good deal, maybe even too much for pump gas if you have flat tops or domed. I would go with 350 heads if I were you. If you have flat top pistons a set of 350 heads would be best.

Are 882 SBC heads good?

The 882 heads are smog heads from ’74 to ’80 and not very well regarded, but neither are stock ’85 heads – if you can find out more about the 882’s they may be better than your stock ’85 heads – ie not only polished & ported but if milled so they will give higher compression and if valves were changed to 2.02 etc they …

Are 305 and 350 blocks the same?

As mentioned above the 305 and 350 are the same except for the bore. Yes you can make a 305 a 350 but you have to have the right block. With the 305 being the “Corporate Engine” of the 80’s, There were more 305’s than 350’s and low budget race teams were forced to use the 305.

Are Chevy 305 engines good?

Although not recognized as a high performance engine, versions including the L69 “High Output 5.0L” and LB9 “Tuned Port Injection 5.0L” were respectable street performers. Although it’s reputation as a passenger car engine was compromised, the 305 has actually experienced some success on the race track.

How much HP can a 305 make?

I completely agree that a 305 can be built to make 450 hp. That’s not too difficult. The engine is limited to smaller heads with 1.94-inch valves because larger 2.02-inch valves won’t clear the cylinder wall.

How much HP can you get out of a Chevy 305?

Premium Member. 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.

How much torque does a 305 have?

The 1986 Chevy 305 was one of the most powerful of the modifications to this engine. The engine boasted 190 hp at 4,000 rpm. The torque was 285 at 2,800 rpm. The bore measured 3.736 inches and the stroke 3.48 inches.

What can I do to make my 305 faster?

Bolt-on Upgrades

  1. Replace the exhaust manifold. The stock exhaust manifold of the 305 engine restricts air flow from the engine increasing back pressure.
  2. Replace the intake manifold and carburetor.
  3. Add cold air induction.
  4. Replace the computer chip.

How can I get more horsepower out of my 350?

How to Get More Horsepower Out of My Chevy 350 Small Block

  1. Modify your air intake. This can be done in a variety of ways, from simply installing a K & N air filter to installing a complete cold-air-intake system.
  2. Modify your exhaust.
  3. Change your camshafts and valve train.
  4. Purchase new cylinder heads, or have yours ported and polished.
  5. Have your motor rebuilt and blueprinted.