Easy 292 horse power bump?

[RThree]

Hello All,

I have a stock 1972 292 I6 with an HEI upgrade. I am interested in some easy ways to bump up the horsepower a little bit. Any suggestions?

I may end up completely rebuilding it at some point but for now im just looking for a little more pep.

Thank for you time!

[firedemon]

NOS or turbo

[AussieinNC]

Stock engine components are not suitable for either NOS or Turbo usage...IMO....

Read this link to an earlier similar question....

http://67-72chevytrucks.com/vboard/s...d.php?t=718799

Be wary of long tube headers, they hang down too low to permit a drop in ride height....

Clifford intake manifold, shorty headers and either a large 2 barrel or small 4 barrel carb....

Also have the HEI unit re-curved to suit the better breathing....

Going this route will allow for more performance right away and if you ever fully build an engine, you can re-use these upgrade parts.

Have fun...

[RThree]

Originally Posted by AussieinNC

Stock engine components are not suitable for either NOS or Turbo usage...IMO....

Read this link to an earlier similar question....

http://67-72chevytrucks.com/vboard/s...d.php?t=718799

Be wary of long tube headers, they hang down too low to permit a drop in ride height....

Clifford intake manifold, shorty headers and either a large 2 barrel or small 4 barrel carb....

Also have the HEI unit re-curved to suit the better breathing....

Going this route will allow for more performance right away and if you ever fully build an engine, you can re-use these upgrade parts.

Have fun...

Thank you that is really good to know about the lowering as mine has a 2/4 drop on it.

What do you mean by "re-curve the HEI unit" i just popped it in off an older truck we had laying around.

"Going this route will allow for more performance right away and if you ever fully build an engine, you can re-use these upgrade parts."

This is exactly what Im looking for, I want to make improvments to it now i can build off of later. Thank you!

[AussieinNC]

Originally Posted by RThree

Thank you that is really good to know about the lowering as mine has a 2/4 drop on it.

What do you mean by "re-curve the HEI unit" i just popped it in off an older truck we had laying around.

"Going this route will allow for more performance right away and if you ever fully build an engine, you can re-use these upgrade parts."

This is exactly what Im looking for, I want to make improvments to it now i can build off of later. Thank you!

Most stock HEI units have an advance curve thats not really suited to performance....a good performance shop can recurve the distributor to suit the improvements. There are also upgraded modules and coil packs available.

Also, check out https://www.12bolt.com/

They are a good source for inline parts....

['68OrangeSunshine]

If you have the budget, an aftermarket alloy intake, headers and a 4 barrel carb will let that 292 L6 run like a big dog.

On rebuild, you can enlarge the bore, use bigger valves, change the cam profile...

[special-K]

Originally Posted by RThree

What do you mean by "re-curve the HEI unit" i just popped it in off an older truck we had laying around.

Just do a spring and weight kit. Lighter springs and heavier weights are a simple and excellent way to give the distributor the performance arc it needs at a given RPM, all centrifugal.