Re: Edelbrock head repair
[Re: 493_DART]
#2538446
08/19/18 08:08 AM
08/19/18 08:08 AM
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Joined: May 2004
Posts: 3,210 robin hood country
deaks
master
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master
Joined: May 2004
Posts: 3,210
robin hood country
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Bob at MCH repaired one of my heads after the engine let go, did a real nice job. Mick
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36
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Re: Edelbrock head repair
[Re: 493_DART]
#2538555
08/19/18 02:20 PM
08/19/18 02:20 PM
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Joined: Mar 2005
Posts: 1,406 New Jersey, USA
yella71
pro stock
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pro stock
Joined: Mar 2005
Posts: 1,406
New Jersey, USA
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Heli coils are pretty simple, you must have enough material to drill the hole oversized to tap it for the coil and you need to measure the depth of the hole. The best would be to be able to be deep enough to use the entire coil but Have cut the coil down in the past to shorten it for a hole that is not deep enough. also the hole MUST be drilled strait and taped strait. If any of this seems too much for you have a professional do it.
71 challenger convertable, 64 sport fury 383 ci with factory air
99 sebring convertable
89 CTD pup
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Re: Edelbrock head repair
[Re: 493_DART]
#2538575
08/19/18 03:37 PM
08/19/18 03:37 PM
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Joined: Oct 2006
Posts: 1,264 New York, USA
Chargerfan68
pro stock
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pro stock
Joined: Oct 2006
Posts: 1,264
New York, USA
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They also have longer than the standard 1/2” long helicoils in some sizes. I did buy a box of 3/4” long helicoils in 3/8” size from one of the big suppliers of fasteners and hardware on the net. If it is possible to repair, i would try to use the longest that is possible. I think the company i used was Mcmaster Carr or MSC industrial. Good luck
1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
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Re: Edelbrock head repair
[Re: 493_DART]
#2538662
08/19/18 08:19 PM
08/19/18 08:19 PM
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Joined: Jan 2003
Posts: 14,498 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,498
So. Burlington, Vt.
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If the heads are heavily ported, there’s a possibility you’ll break through into the ports when you drill over size for the heli-coil.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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