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Post Info TOPIC: 400 For Now


- MotorHead -

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400 For Now
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SMALL BLOCK ALAN ASHWORTH

 

 



- GearHead -

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Nice, I ran a very warmed up 400 SBC in my high school '65 Elco.

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'04 Ram Quad-That thing has a Hemi in it!

'68 El Camino-SB 350/TH400/??? 

'67 Hell Camino-BB 427/TH400/??? 

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- MotorHead -

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badrad wrote:

Nice, I ran a very warmed up 400 SBC in my high school '65 Elco.


 I'm thinking a 407.9

Not totally sure and and not in a rush.

Going to see what bore size will clean it up at the machine shop hopefully here soon.  Maybe .030 or .040



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SMALL BLOCK ALAN ASHWORTH

 

 



- GearHead -

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Mine was as follows; +.030 bore, 186 heads w/2.02 & 1.60 valves, RPM intake and SB SLD FT cam with same specs at L78/LS6 cam.



-- Edited by badrad on Friday 20th of January 2017 05:11:08 AM

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'04 Ram Quad-That thing has a Hemi in it!

'68 El Camino-SB 350/TH400/??? 

'67 Hell Camino-BB 427/TH400/??? 

"Good people sleep peacefully in their beds at night only because rough men stand ready to do violence on their behalf."-Orsen Wells

 

Strong people are harder to kill than weak people.  And they are more useful in general.

 



- Durand -

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Depending on your intended usage, you might want to consider going against conventional thinking and destroke it.

With a 3.48" stroke it's around a 377 cid big bore 350 on steroids.

You lose a little torque from the stroke loss, but you can put the RPM's in the attic.




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'65 Pontiac Lemans 468 t400 4.10 12 bolt

Best ET  11.43 @ 117.7



- MotorHead -

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LaVelle wrote:

Depending on your intended usage, you might want to consider going against conventional thinking and destroke it.

With a 3.48" stroke it's around a 377 cid big bore 350 on steroids.

You lose a little torque from the stroke loss, but you can put the RPM's in the attic.



 Read about that too.  I wanted to stroke it until I was advised otherwise.  I really want the torque from light to light because right now it's the opposite due to my current cam.  Plus, I got a killer deal on the block from Jason and it will be my first time starting from the block.  



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SMALL BLOCK ALAN ASHWORTH

 

 



- The Craigslist Ninja -

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I built a 406.

I ran flat top pistons, 6 inch rods, hyd roller cam, 72 cc AFR 195 heads (75 cc milled down and 400 steam holes drilled by AFR)

Made 550 torque and 525 hp

Martin is still running it in his 66 Chevelle. I believe he raced in Pro class this year for several races. And is street driven often.

Fun motors. I would build another in a heartbeat.



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- Beemer Brett - Redmond, WA

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Wouldn't mind one in my k20.

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- The Craigslist Ninja -

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Brettd85 wrote:

Wouldn't mind one in my k20.


 Tons of torque if built right.

I was so smooth driving around, that I would forget how ANGRY it could get; and I would romp on it to pass someone on the street and just shred the tires.



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- MotorHead -

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LostNFound66 wrote:
Brettd85 wrote:

Wouldn't mind one in my k20.


 Tons of torque if built right.

I was so smooth driving around, that I would forget how ANGRY it could get; and I would romp on it to pass someone on the street and just shred the tires.


 Good to hear!  +.030" MIGHT clean the pitting up in the one bore.  So I will be going to the machine shop first.  I also was advised to go 406 with flat tops and I want to be like 10.1.  I have AFR 1034's on my 355 so I could steal those or(most likely)get another pair so I have two complete engines in case I ever get my own car.  This will be the most exciting thing I have done so far engine wise.  



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SMALL BLOCK ALAN ASHWORTH

 

 



- MotorHead -

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LostNFound66 wrote:

I built a 406.

I ran flat top pistons, 6 inch rods, hyd roller cam, 72 cc AFR 195 heads (75 cc milled down and 400 steam holes drilled by AFR)

Made 550 torque and 525 hp

Martin is still running it in his 66 Chevelle. I believe he raced in Pro class this year for several races. And is street driven often.

Fun motors. I would build another in a heartbeat.


 What was your compression with those heads?



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SMALL BLOCK ALAN ASHWORTH

 

 



- Durand -

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Brandon1984 wrote:
LaVelle wrote:

Depending on your intended usage, you might want to consider going against conventional thinking and destroke it.

With a 3.48" stroke it's around a 377 cid big bore 350 on steroids.

You lose a little torque from the stroke loss, but you can put the RPM's in the attic.



 Read about that too.  I wanted to stroke it until I was advised otherwise.  I really want the torque from light to light because right now it's the opposite due to my current cam.  Plus, I got a killer deal on the block from Jason and it will be my first time starting from the block.  


Like I said depending on intended usage. 

It was just food for thought.

Either way they make nice power.

For what your wanting, the 406 is the better way to go.

 

End of the 80's I built a 383 for a friend back before everybody knew about them.

Flat top pistons.

Home ported 461's w/2.02-1.6 valves

Isky HFT cam 256 @ .050 / .525 lift  Int and Exh.

V.J. intake w/750dp

Motor ran consistent low 12's like a brick in my Pontiac w/ 3000 stall in street trim.  ( 11.88 and 11.89 best on a cold spring morning.)

 

 

 

 

 

 

 



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'65 Pontiac Lemans 468 t400 4.10 12 bolt

Best ET  11.43 @ 117.7



- The Craigslist Ninja -

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Brandon1984 wrote:
LostNFound66 wrote:

I built a 406.

I ran flat top pistons, 6 inch rods, hyd roller cam, 72 cc AFR 195 heads (75 cc milled down and 400 steam holes drilled by AFR)

Made 550 torque and 525 hp

Martin is still running it in his 66 Chevelle. I believe he raced in Pro class this year for several races. And is street driven often.

Fun motors. I would build another in a heartbeat.


 What was your compression with those heads?


 Around 10.4 I believe



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- The Craigslist Ninja -

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Brandon1984 wrote:
LostNFound66 wrote:
Brettd85 wrote:

Wouldn't mind one in my k20.


 Tons of torque if built right.

I was so smooth driving around, that I would forget how ANGRY it could get; and I would romp on it to pass someone on the street and just shred the tires.


 Good to hear!  +.030" MIGHT clean the pitting up in the one bore.  So I will be going to the machine shop first.  I also was advised to go 406 with flat tops and I want to be like 10.1.  I have AFR 1034's on my 355 so I could steal those or(most likely)get another pair so I have two complete engines in case I ever get my own car.  This will be the most exciting thing I have done so far engine wise.  


 You wouldn't want to run the 1034 heads on a flat top 406 unless you want to run race gas. You would have 11.1 or higher compression. AFR 1036 with 75cc chamber would get you around 10.0



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- Shane -
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love my 377...if you like RPMs the 400 is not for you.unless you spend the money and put lightweight parts inside.if you are geared correctly the 400 will work killer.just remember that 400 crank is heavy and turns into a noodle at high RPMS,and shit starts breaking! one last thing..400 takes a different rear main seal!



-- Edited by leadfoot067 on Sunday 22nd of January 2017 09:30:59 AM

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- Martin -
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LostNFound66 wrote:

I built a 406.

I ran flat top pistons, 6 inch rods, hyd roller cam, 72 cc AFR 195 heads (75 cc milled down and 400 steam holes drilled by AFR)

Made 550 torque and 525 hp

Martin is still running it in his 66 Chevelle. I believe he raced in Pro class this year for several races. And is street driven often.

Fun motors. I would build another in a heartbeat.


and it runs consistent 12.20's leaving off idle (no convertor) in drive, letting the transmission shift  itself.



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- GearHead -

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I really liked mine, one of the hottest rides in town back then. . .but we were just a bunch of HS kids. Another friend of mine had a 396 that used to hoop us bad.

__________________

 

'04 Ram Quad-That thing has a Hemi in it!

'68 El Camino-SB 350/TH400/??? 

'67 Hell Camino-BB 427/TH400/??? 

"Good people sleep peacefully in their beds at night only because rough men stand ready to do violence on their behalf."-Orsen Wells

 

Strong people are harder to kill than weak people.  And they are more useful in general.

 



- MotorHead -

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badrad wrote:

I really liked mine, one of the hottest rides in town back then. . .but we were just a bunch of HS kids. Another friend of mine had a 396 that used to hoop us bad.


 My best friend has one in his 67 GTO w/ a TH400.  Love that car so much and he drove it in HS also.  That thing laid plenty of rubber like Martin was saying about his.  So a healthy 406 sounds very promising to me.



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SMALL BLOCK ALAN ASHWORTH

 

 




- Martin -
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Brandon1984 wrote:
badrad wrote:

I really liked mine, one of the hottest rides in town back then. . .but we were just a bunch of HS kids. Another friend of mine had a 396 that used to hoop us bad.


 My best friend has one in his 67 GTO w/ a TH400.  Love that car so much and he drove it in HS also.  That thing laid plenty of rubber like Martin was saying about his.  So a healthy 406 sounds very promising to me.


Uhmmm, I didn't say that. 



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Tazman wrote:
Brandon1984 wrote:
badrad wrote:

I really liked mine, one of the hottest rides in town back then. . .but we were just a bunch of HS kids. Another friend of mine had a 396 that used to hoop us bad.


 My best friend has one in his 67 GTO w/ a TH400.  Love that car so much and he drove it in HS also.  That thing laid plenty of rubber like Martin was saying about his.  So a healthy 406 sounds very promising to me.


Uhmmm, I didn't say that. 


 Oh, well....... good.



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SMALL BLOCK ALAN ASHWORTH

 

 

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