HOW MUCH HP DID THE 1969 DZ302, THE 1965 365-HP L76 327 OR 1970 LT1 350 REALLY MAKE? WAS IT FAUX HP?

He simply verified once again, what I learned as a 16y/o boy many years ago; If you want to win races and don't have all the money in the world, put your money in buying a big motor as opposed to building up a small block. However, very few things can warm my old heart like hearing the idle of double hump SBC heads on a 327 with a 108 General Kinetics or Crane(Blazer series) cam tickling the valves. Long live the small block.

The GM 302 was just a 327 with a 283 crankshaft. A "destroked" 327 basically, specifically produced for Trans am series road racing which was limited or restricted to 5.0 liters.

In the 80's I was 20 and built a .40 over 350 block with a 327 crank, milodon drive, windage tray, 11-1 Pistons all the good stuff heads etc with a Crane Custom Grind solid cam .575x.300 intake and exhaust (4deg retardef) triple valve springs, balanced, o-ringed, Weiand Tunnelram with 2 660 center squirterswith 50cc pumps and a direct port 225 Nitrous. 4000 stall manual 400, 5:13 posi. Lifted the front wheels on my 72 Chevelle. ahh the good old days. lol now im old

We know that the 30/30 cam in the 302 did not make enough low end torque to make an automatic transmission an option. Automatics were an option on the 1970 LT-1, but would that have been possible with the 30/30? Can't imagine wanting an automatic anyway. I loved my '69 Z/28.

interesting to see that the three SBC's all made basically the same peak power. I'm an RPM lover and its cool to see how the 302 made basically the same power as the 350 but a full 1000 rpm higher.

Bore and stroke! Ain’t no joke! The side-by-side comparisons are super informative! Great video! Thanks!

I had a 69 Camaro with a LT1 350 with the off road GM cam, other than a Edelbrock intake it was bone stock. It turned a rod bearing so I yanked it out of the car and replaced the crank as the rod was ok. Put the car all back together and it didn't have any power like it used to. So I thought I may have had the distributor in wrong. Nope not that at all. The crank I put in was a 327 crank!! No wonder it didn't have any power! It still had 110 lbs compression. So since this was my daily driver I just advanced the timing until it sounded better. Took it for a drive and no pinging sounds - more advance. I put a timing tape on and checked the timing - it was 55 degrees! So I then bought a MSD box for it and set it to 7000 cut out. Richard this was a ripper, with so low a compression it didn't take long to rev up that is why the MSD box. I drove it like that for another 2 years and thrashed it. It had a turbo 400 out of a 4 X 4 with a reverse valve body so it was really fun to drive. Our tuning tools back then was a timing light and a screw driver for jet changes. Keep those comparison videos coming.

So if the 302 chevy could get another 1000rpm it would be an absolute monster. I know for a fact that the 302 can definitely do 72-7500rpm and absolutely ruin big displacement motors and outrun them. Its a sewing machine. You can do it now but in 1969 that was a work of art

I love your videos Richard. I watch all of them. I love the way that you control variables as much as is reasonable with all of your engine tests and share the raw data. Keep it up.

Great test as always but what people some times forget we dont race dynos, in a car on a 1/4 mile track 350-3.73 / 327-4.10 / 302-4.56 the times would be too close to call. With the more rpm you can run more gear witch ups the engines torque to the wheels witch moves the car. Again great test as usual pls dont stop.

Thanks Rich for posting these cool and informative videos. I can tell you that this is one of my favorite channels because you do the comparisons and you're not afraid to build up an engine that everyone says is crap...and you actually make it perform like the bigger badder engines!

I guess the old saying still stands! “ THERES NO REPLACEMENT FOR DISPLACEMENT”!! Great video keep them coming 👍🏻

Richard Holdener your making some great vidoes

Great video! Dig on the old vs new school stuff, its amazing how far cylinder head design has come.

I am addicted to these presentations, just fantastic!

These videos are addicting, so much cool info, thanks for posting and keep it going!

Great video! I was just searching for this yesterday. Now here it is. Your the man Richard! Thanks for your hard work and dedication. I know your having fun though.

That is actually my era. I lived a mile from Fremont drag strip. I couldn't afford any of those cars with those engines but I rode in/raced all of em. First the 302.. My buddy just got back from a stint in the unpleasantness in south east asia. He had some money so off to Central Chevrolet he went for a brand new 69 Z 28 The car was an absolute beast... I remember the salesman saying something about 'off road only" In the trunk of that car was a cross ram 2 four setup and an in the box 'off road' cam. When I was in high school my dads buddy came to the house with a brand new vette ... it had the injected 327 and against my dads advise the guy let me drive it to get them some beer or something. That car was also very fast. Then... my best bud had a dad that was getting quite a collection of tri five Chevys including some nomads. He really did not care about Hp but he picked up a 56 Nomad somewhere. In primer... 4 speed And it sounded basd a$$ It had headers and... as it turned out... a crate 350 370 horse motor. But as we later found out... it had the 'off road' cam in it. We drove that car (which he just confiscated from pops) all over... Other than blowing rear ends it was relatively dependable and we actually never got beat in the thing. So this test is interesting to me since I thought all of em were pretty killer motors with much the same internals. years later I ended up putting a 302 Z28 clone motor in my 55 two seater Healey... Yeah... believe me I know.

Wow, nice upgrade on the acoustics! Thanks for anothe intresting video.

Love it man keep the uploads coming