Another chainsaw dyno...

[drf256]

The ZL-1 I was referring to was the original, not the reincarnation.

Guess I’m in the older crowd.

I’m talking all aluminum 427ci BBC. GM makes a crate motor.

EDIT: I’ve been out of the game too long. They stopped making an all aluminum crate motor, and the prices have skyrocketed on the others. Been a long time. May build the 427 and add aluminum heads.

 

[Johnmn]

The ZL-1 I was referring to was the original, not the reincarnation.

Guess I’m in the older crowd.

I’m talking all aluminum 427ci BBC. GM makes a crate motor.

EDIT: I’ve been out of the game too long. They stopped making an all aluminum crate motor, and the prices have skyrocketed on the others. Been a long time. May build the 427 and add aluminum heads.

Am I wrong to assume your "406" is just a slightly bored 400 SB? I am a small block fan myself, have you thought about stroking your 400? I know with added bore and stroke you can make a 454 SB!
I'd pair that with a hydraulic roller cam and some nice aluminum heads (I believe you mentioned AFR) and just call it a day!

 

[MustangMike]

That would be nice to match your hood stickers and your motor ... (Yea I know the original was a big block).

Is the 427 crate motor a 4" stroke?

Luckily, the newer crank, rods and pistons are so much lighter and stronger than what used to be available.

Will be nice to see that car rolling again Al!

 

[Bigmac]

That would be nice to match your hood stickers and your motor ... (Yea I know the original was a big block).

Is the 427 crate motor a 4" stroke?

Luckily, the newer crank, rods and pistons are so much lighter and stronger than what used to be available.

Will be nice to see that car rolling again Al!

Mike they have a 3.76” stroke same as a 396. And similar to the small block 400 at 3.75

 

[Bigmac]

The ZL-1 I was referring to was the original, not the reincarnation.

Guess I’m in the older crowd.

I’m talking all aluminum 427ci BBC. GM makes a crate motor.

EDIT: I’ve been out of the game too long. They stopped making an all aluminum crate motor, and the prices have skyrocketed on the others. Been a long time. May build the 427 and add aluminum heads.

Copy, I am familiar with the zl427 all aluminum crate motor,I remember when they discontinued it. I know someone local that purchase one, and plans to leave it in the crate forever! lol. It was a cool motor, but I wouldn’t consider it a fire breather. You could easily out preform it with afr 195 and a roller cam. And be 200 lbs lighter than an aluminum headed bbc. Personally the 600+hp Mark is were the bbc is the clear choice. With the bbc a 572 weights and packages the same, and depending on your build doses not cost much more, my buddy both a skip white 572 crate motor for about 8k and it made 707hp and 64o lbs on the engine dyno. You could also build a 496 out of the 427, or put a 454 crank and bore it to 468, 454 cranks are cheap! Lots of options! You can get an easy 550hp out of the sb400 with afr heads, I like small block also because of the mpg, with flat tops and chamber options you get a better burn.

 

[ranchdadmike]

Thank you for the respect. Healthy discussions are what interests me. I think we are actually saying the same thing.

It’s what @wcorey is saying as well. It’s the entire curve, it’s magnitude as well as it’s duration and area.

Case in point would be a 16” bar on a saw cutting a 6x6 cant. As long as a saw has enough power/Tq to pull past the minimum load the chain friction creates on that given bar, it should perform similarly to a bigger saw. It’s why you’ll see a smaller saw keep up with a much larger saw in smaller wood, it can still keep the chain speed high enough for that load.

When you hear someone bragging that their 026 beat an 066 through a cant, you know that doubling the bar/can’t size would put their bragging to rest.

Tq vs. Hp has always been hard to explain. I built my own 406ci SBC for torque as it was built for the street. In a 3000 lb ‘69 Vette with 3.36 gearing and a Muncie M20, it did its job. Once I added a 4.10 rear, I wanted more on top. Now my issue is weather to build the 427/390 I have on an engine cradle or just add AFR heads with a street roller cam to the 406. Or just buy a ZL1 crate motor and call it a day.

I’ve got an LS7 and love it, buy a crate version and have the ‘427’ AND sbc, or even better-er:

 

[BangBang77]

Since we've already headed down the rabbit hole, what does a LS7 crate motor run these days?

I haven't bought a crate motor in over 20 years...

 

[ranchdadmike]

Since we've already headed down the rabbit hole, what does a LS7 crate motor run these days?

I haven't bought a crate motor in over 20 years...

 

[BlackCoffin]

Even the LS7 is underpowered from the factory. Sure it has good power but a cam swap on a 6.0 truck engine can get you the same horsepower.

I had a 377 13:1 compression engine in my s10 for awhile. Made 550hp at 7100rpm and almost seemed like it was too much of a top end engine. I would definitely have put a smaller cam in it or go with the longer stroke of a 400. It was too much of a race setup that lost some enjoyment on the street I felt. Now it’s a turbo 5.3 LS going in it for meeting all the demands!

 

[drf256]

Am I wrong to assume your "406" is just a slightly bored 400 SB? I am a small block fan myself, have you thought about stroking your 400? I know with added bore and stroke you can make a 454 SB!
I'd pair that with a hydraulic roller cam and some nice aluminum heads (I believe you mentioned AFR) and just call it a day!

Yup. .030 over 400ci.

 

[MustangMike]

Thanks for the correction, the Ford 400 was a 4 X 4, It thought they both were. My bad!

 

[Bigmac]

Even the LS7 is underpowered from the factory. Sure it has good power but a cam swap on a 6.0 truck engine can get you the same horsepower.

I had a 377 13:1 compression engine in my s10 for awhile. Made 550hp at 7100rpm and almost seemed like it was too much of a top end engine. I would definitely have put a smaller cam in it or go with the longer stroke of a 400. It was too much of a race setup that lost some enjoyment on the street I felt. Now it’s a turbo 5.3 LS going in it for meeting all the demands!

What head you have on the 377? Dart 200? You running and auto? I don’t disagree that that the 377 is a top end motor,,with the 6 speed it’s easy to get in a good rpm range, and still has enough torque to pull 6th at 55mph at 2k but you can also drop it into second gear and be and still to 80mph, third gear is 3500 at 50mph and sweep to 7500 at 108mph. I like the rev range. And even at that with decent street tires is wants to spin at 50mph at 3500. With an auto, torque is king. Unless the auto is worked over for the need, like a big converter and manual valve body. I like the personality, and the idle chop, lol I would never want the motor in my 72 blazer, but a 3100 pound car 6sp and 4.11’s it’s fun.

 

[Red97]

 

[p61 western]

View attachment 288363 View attachment 288353

WTF that's way off topic!! Lol

 

[Red97]

WTF that's way off topic!! Lol

Right?

 

[Bigmac]

View attachment 288363 View attachment 288353

Is that just a bark box, or?

 

[Red97]

Is that just a bark box, or?

That is fully ported

 

[Bigmac]

That is fully ported

Thanks, was hard to see on the mobile, see that now

 

[p61 western]

Right?

How dare you. Lol how have you been doing Joe?

 

[Red97]

How dare you. Lol how have you been doing Joe?

Piggin, and sawing....

Hopefully all the pigs will be sold this weekend, then full time on the saw stuff.