It can be done, BUT, BUT, BUT!!

It will need the best parts in it MONEY can buy to hold up at those rpms for any length of time.

Heck, I'd just gear and tire her right and go have fun w/ your Buddy b/c a 496 or a 540 can make some BIG power.

As always, jmho..

pdq67

PS., a BB combination like this will have a better chance of staying together.

4.60" b x 3.76" s = 499.9" short-stroke engine. You will need a big bore block and excellent parts!!

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It sure can. My 540 goes through the lights at 7600.

 

If not on a sticky track, my 540 is instantly bouncing off the 7600 rev limiter every time I mash it in 1st (and often in 2nd), regardless of speed.

Do I need to mention that this is an often occurance.

 

Why?

 

Gear it properly and you won't have to rev like a small block four cam engine. A big engine will go right on around a small one without winding it to death, unless the little one is supercharged.

My philosophy for a street car is build lots of cubes and concentrate on torque which will allow you to build a low maintenance engine. If you can afford it build a 565 (4.600x4.250) at around 10.5:1 compression, a hydraulic roller cam, and keep the RPMs below 6500. Sure it won't be spinning high, but you will be spending a bunch less on the build and you'll be driving it for years before replacing springs rather than months.

I agree completely with the quotes above^..... let your buddy with the cookie cutter smog-motor car rev to the moon...while he's reving that little squirrel cage engine, you and your car will be flying right past him while making some much nicer noise, and keeping the RPM below 6,000.

So what good will his 8,000 RPM rev be then? The thing will just be making noise, but look like it's not going anywhere when your car passes it like it's standing still. So his claims of high revs with his small motor won't have much weight then. Will they?

 

Gear it properly and you won't have to rev like a small block four cam engine. A big engine will go right on around a small one without winding it to death, unless the little one is supercharged.

 

Let me disect your post

You want 8000 RPM but plan to do this with a small cam, budget aluminum heads, and big compression with pump gas. This will leave you with a disappointing combination. Big RPM needs light and high quality valvetrain in the order of premium pushrods, monster springs, titanium valves and retainers, (ideally) shaft rockers, etc, etc, etc. These are expensive, and assuming this is intended for street duty, are not long term parts.

My philosophy for a street car is build lots of cubes and concentrate on torque which will allow you to build a low maintenance engine. If you can afford it build a 565 (4.600x4.250) at around 10.5:1 compression, a hydraulic roller cam, and keep the RPMs below 6500. Sure it won't be spinning high, but you will be spending a bunch less on the build and you'll be driving it for years before replacing springs rather than months.

 

Just remember RPM's does not equal torque and horsepower. Just because you can rev a small block to 8,000 +, does not mean that it is making more power to move the car. Would you rather have a 283 small block revving to 8k and making 375 hp, or would you rather have a 496 revving to 6k and making 600 hp?

 

Just remember RPM's does not equal torque and horsepower.

Your right....Toque and rpms is HP [(tq*rpm)/5252=hp]:thumbsup:

Now it is very impressive to have an engine that will take an 8000 rpm run but not practical for street. My 468 has hit 7800 but would not do it again if i can help it. If you stick to 7000 and lower you will be happier for sure, and will walk on that mustang on your way to the tens