Location of header bolts in water jacket

• Feb 27, 2015

• #1

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shrek

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Hey guys, Trying to put this thing back together. can somebody tell me which header bolts from front to back on both sides need to be longer to extend into the water jacket. installed summit header bolts and she is already leaking without starting engine. Do all header bolts need to be replaced or just certain one's?? Thanks, steve

this is a 69- 440 motor

 

• Feb 27, 2015

• #2

dvw

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End bolts only. Seal with white Teflon paste. My mistake i was thinking small block. I still advise the Teflon paste
Doug

 

Last edited: Feb 28, 2015

• Feb 27, 2015

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69Bee

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ALL exhaust bolt holes go to water. Use sealer (non-hardening type) on the bolt threads.

 

• Feb 27, 2015

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shrek

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so I can use the bolts that were supplied by summit(which are only about 3/4 in. long) and just put Teflon paste on them? Do I have to drain part of the coolant to do this? Thanks

 

• Feb 27, 2015

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khryslerkid

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Think about it. The coolant level is above your bolt holes.

 

• Feb 27, 2015

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lewtot184

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69Bee said:

ALL exhaust bolt holes go to water. Use sealer (non-hardening type) on the bolt threads.

Click to expand...

this is correct. i don't use header bolts because of the coolant leaking problem. i use studs, just like the factory did.

 

• Feb 27, 2015

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shrek

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zThought maybe you could pull one out and insert another until you got the one Teflon coated then reinstall without draining the coolant. but what do I know, that's why I asked

khryslerkid said:

Think about it. The coolant level is above your bolt holes.

Click to expand...

 

• Feb 28, 2015

• #8

Funship32

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Basically you'll have to drain the coolant down a way and even then you'll probably still get some dribbling out of the rearward bolt holes. As for a sealant- that has been pretty much a debatable topic since year one I suspect. Some use Teflon tape with good results. Others have had problems. I personally used non-hardening pipe dope on mine.