Need HP from my Chevy 267

[beemen]

I have a 1982 caprice classic with a 4.4 267 V8 in it. There is only 60,000 on the engine original and i need more HP. Problem is i dont have time or money for a new engine. Any ideas on what i can do to the 267? it is all stock with 2 barrel right now.

[silicon212]

Unfortunately, due to cylinder configuration, there's not much you can do to that and have it be streetable. It has a small bore (3.5") and small valves (1.72/1.5).

[beemen]

Would it be worth buying a new intake and a 4 barrel carb for my 267? or a pointless investment?

[silicon212]

Originally Posted by beemen

Would it be worth buying a new intake and a 4 barrel carb for my 267? or a pointless investment?

Pretty pointless, unfortunately. Your best action is probably to get a 305, or better a 350, from a junkyard or other source and replace the 267 with it.

[Blue Bowtie]

bout the only way to get more air into and out of that engine would be some sort of boost, and a turbo installation could be prohibitively expensive. A belt drive blower will still set you back as much as a good, running V-8 as Silicon suggested.

Strange as it may seem, you fuel mileage with a 305 is probably going to be as good or a little better than the 267. The 305 bore/stroke ratio is a lot more efficient at lower RPM. The 267 has a little better bore/rod ratio, but it's not quite enough to make up for the bore/stroke advantage of the 305. A 350 will probably get a bit lower mileage in short trip driving, but do just as well as either in highway driving.

If it runs well now, you might just want to keep it running well in stock form while you decide your course of action.