| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
07-26-2023, 11:32 AM
|
||||
|
||||
What is it ?
A couple weeks ago we destroyed a high 11 sec. 455 motor.
So we put together an old well used 400 motor . Same intake manifold. Started it up, sounded good, ran for 5 minutes and died. Restarted motor and heard a loud knock. Pulled motor, pulled pass head and found this piece of metal on top of piston. What is it and how did it get there ??
__________________
 3 Generations of "Beach Boys Racing" ! Everybody knows somthin. Nobody knows everything ! 1st time on a dragstrip, 1964. Flagstart ! "Thanks for the entertainment." "Real Indians Don't Wear Bowties" |
|
#2
07-26-2023, 11:41 AM
|
||||
|
||||
|
Piece of metal from the 455 get trapped in the intake manifold and fall out when installed on the 400?
Sent from my SM-G965U using Tapatalk
__________________
68 Firebird-- Street/Strip - 400/461 Eagle Forged Bottom End & Ross Flat top pistons. KRE 325 CFM D port, Ultradyne 263/271 @.050, .4267 lift. Crower Solid roller lifters and 1.65 stainless rockers. Quickfuel 1000 on Torker2 intake and 2" open spacer. Hedman 1.75" headers. TH400 w/brake. Ford 9" w/3.80 gears & 28x9 Hoosier pro bracket drag radial. Best ET: 1.35 60ft, 6.29 @ 107.20 mph, 9.99 @132.33 mph. 3,300 race weight |
| The Following User Says Thank You to leeklm For This Useful Post: | ||
|
#3
07-26-2023, 11:53 AM
|
||||
|
||||
|
Kinda looks like a piece from a broken pushrod.
|
|
#4
07-26-2023, 12:07 PM
|
||||
|
||||
|
A chip off the old block!
|
| The Following User Says Thank You to einstein For This Useful Post: | ||
|
#5
07-26-2023, 12:14 PM
|
||||
|
||||
|
Looks like a smashed piece of key stock.
|
|
#6
07-30-2023, 09:04 PM
|
||||
|
||||
|
Kinda looks like a metal plug, kinda small freeze plug looking.
|
|
#7
07-31-2023, 12:25 AM
|
||||
|
||||
|
Looks like the end of the dipstick tube smashed flat.
Hiding inside the intake manifold and ending up in the next engine.
__________________
1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
| The Following User Says Thank You to b-man For This Useful Post: | ||
|
#8
07-31-2023, 06:14 AM
|
||||
|
||||
|
It's got that light goldfish copper color that tells me it was part of the dip stick set up or factory windage tray if you where running that.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
|
#9
07-31-2023, 08:11 AM
|
||||
|
||||
|
WOW!
You and Tim could have matching mementos. (thread in Race section) 
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
|
#10
07-31-2023, 12:19 PM
|
||||
|
||||
|
NO broken pushrods. All pistons were still in their holes. We put together a mild 400 with a different set of heads same intake. The piece almost looks too big to pass through the intake valve. Scratching our heads. Put 400 back together, running fine, just slower.
__________________
3 Generations of "Beach Boys Racing" ! Everybody knows somthin. Nobody knows everything ! 1st time on a dragstrip, 1964. Flagstart ! "Thanks for the entertainment." "Real Indians Don't Wear Bowties" |
|
#11
08-01-2023, 11:15 AM
|
||||
|
||||
|
What about a missing vent tube on your Holley?
|
|
#12
08-09-2023, 11:32 AM
|
||||
|
||||
|
Quote:
Thanks, OGR
__________________
3 Generations of "Beach Boys Racing" ! Everybody knows somthin. Nobody knows everything ! 1st time on a dragstrip, 1964. Flagstart ! "Thanks for the entertainment." "Real Indians Don't Wear Bowties" |
|
#13
08-09-2023, 12:26 PM
|
||||
|
||||
|
The color of it and how it would have gotten in to your intake runner in the first place.
|
| The Following User Says Thank You to 400 Lemans For This Useful Post: | ||
|
#14
08-09-2023, 01:05 PM
|
||||
|
||||
|
Crowd sourcing information ... wonderful thing to see.
Nice work 400 Lemans!
__________________
I'm World's Best Hyperbolist !! |
|
#15
08-09-2023, 01:17 PM
|
||||
|
||||
|
Quote:
|
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
