Thread: 572

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Has anybody out there tried the zz 572 crate Chevy engine. Just wondering how they done on build I was about to buy the 620 hp one

I have no experience with them, but hang on, somebody on here will have had experience with them or knows someone who has.

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I don't have power brakes but didn't b blocks come out in cars with manual brakes, and I have got the power glide in there now want it hold up to a b block engine it already has heavy springs in front

Originally Posted by Ken1960

I don't have power brakes but didn't b blocks come out in cars with manual brakes, and I have got the power glide in there now want it hold up to a b block engine it already has heavy springs in front

Ken,
I have no direct experience with the 572 crate engines from Chevrolet Performance, but IMO their engines are a great value. There are thousands of GM 572's out there performing flawlessly, which speaks to the quality of their approach to me. Then again, I'm just a dumb engineer who over thinks everything, so you need to put that into your evaluation, too.

The issue with power brakes is that an engine with a lot of overlap won't pull enough vacuum at idle & certain loads to ensure that the brake booster will have enough "suck" to provide any boost. The solution is to either have a good sized vacuum reservoir with check valves, or even better to have an electric/engine driven vacuum pump to provide a consistent "suck" to your accessories. Manual brakes are not a problem.

Your powerglide, if it's built for the service, will be virtually bulletproof. There were lots of powerglides running in slingshot dragsters pushing big power numbers and lots of traction back in the day. They're crappy for long range cruise efficiency, but hard to beat for play.

Ken, let's keep all of your questions in one thread. Take this back to the other one so it keeps a train of thought going.

A couple of old Roy Orbison songs might apply to this OP

Originally Posted by NTFDAY

A couple of old Roy Orbison songs might apply to this OP

Crying
Running Scared
It's Over
A Legend in My Time
Afraid to Sleep
All By Myself
All I Have To Do Is Dream
All I Need Is Time
An Empty Cup
Baby's Gone
Beautiful Dreamer
Beyond The End
Big As I Can Dream
Break My Mind
Bridge Over Troubled Water
Bye Bye Love
Can't Forget
Can't Wait
Casting My Spell On You
Cause of It All
Changes
Come Back To Me
Communication Breakdown
Crying Time
Daydream
Defeated
Distant Dreams
Don't Take Her From Me
Dreaming
End Of The Line
Far, Far Away
Give Up
Growing Up
Heading For The Light
Heartache
Heavy Load
Help Me
Here Comes the Rain Baby
How Do You Start Over
I Can't Help It
I'd Be a Legend in my time
I Got Nothing
I'm Hurting
I Never Knew
I've Had My Moments
If Only For a While
Just Let Me Make Believe
Love Struck
Move on Down the Line
Never
No I'll Never Get Over You
No One Will Ever Know
Oh Lonesome Me
Pledging My Love
Pretend
Problem Child
Remember When
Saturday night at the movies again (driving an Opel)
Say No More
She's A Mystery To Me
Suddenly I forgot about you
That's A No No
The Great Pretender
Time To Cry
When I Stop Dreaming
Where Does All The Money Go
You're Gonna Cry

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