Author Topic: 340 intake crack?  (Read 799 times)

Offline clinton5

  • Newbie
  • *
  • Posts: 2
340 intake crack?
« on: June 03, 2016 - 02:57:40 PM »
After magnifluxing I have a crack in my intake on an exhaust port . Just thinking of blocking it off.
My question is do I or should I block off both sides? It is the original 70 intake and I want to keep it that way. Thanks guys




Offline CUDA JAS

  • Resident
  • *****
  • Posts: 2292
  • vroooooom!
Re: 340 intake crack?
« Reply #1 on: June 03, 2016 - 03:19:34 PM »
After magnifluxing I have a crack in my intake on an exhaust port . Just thinking of blocking it off.
My question is do I or should I block off both sides? It is the original 70 intake and I want to keep it that way. Thanks guys

not sure I follow...you have a crack on the an exhaust port on you intake manifold???

Do you have pictures of the crack??

Jason
74 'cuda 360/727



Gearhead: car nut, automotive enthusiast, one who loves hot rods, muscle cars, hot trucks, burnin' rubber and neck snapping performance. 

Just call me a gearhead!

Offline burdar

  • Sr. Resident
  • ******
  • Posts: 5925
Re: 340 intake crack?
« Reply #2 on: June 03, 2016 - 04:46:16 PM »
Cracks through the exhaust crossover are fairly common.  My original intake was cracked there too.  The machine shop showed me where the crack went all the way up through the carb flange.  They thought there would be a definite vacuum leak.  I used a different intake.

Offline 1 Wild R/T

  • Resident
  • *****
  • Posts: 4594
Re: 340 intake crack?
« Reply #3 on: June 03, 2016 - 08:36:28 PM »
Cracks through the exhaust crossover are fairly common.  My original intake was cracked there too.  The machine shop showed me where the crack went all the way up through the carb flange.  They thought there would be a definite vacuum leak.  I used a different intake.

Early form of EGR...
JS27N0B 70 Challenger R/T Convertible  FJ5 Sublime, Show Poodle w/90,000 miles since resto
WS27L8G 68 Coronet R/T Convertible  PP1 Bright Red, Project
RM21H9E 69 Road Runner Coupe R4 Performance Red, Sold...
5H21C  65 Falcon 2 dr Wagon... Dog Hauler...

Offline clinton5

  • Newbie
  • *
  • Posts: 2
Re: 340 intake crack?
« Reply #4 on: June 05, 2016 - 11:33:38 PM »
After magnifluxing I have a crack in my intake on an exhaust port . Just thinking of blocking it off.
My question is do I or should I block off both sides? It is the original 70 intake and I want to keep it that way. Thanks guys

Any advice on using blocking plates on the exhaust crossover on my intake manifold?