Mopar Muscle Association UK

I am after a good quality pair of Exhaust Manifold Gaskets to fit a 383ci with Headers in my 1968 Dodge Charger, can anyone recommend what to use please I have used Mr Gasket in the past but they don't last long.

Percys Gaskets......
Used these after they were reccomended in the US on my SB with Dougs headers. They do a BB version:

https://www.summitracing.com/search/pro ... ine-family

Tried all sorts. Never had one seal properly yet ! (tickticktick)
Tried TTi, no-names, currently on sort of a layered-aluminium affair (cant remember who made it). Got some copper ones to try next. I've stopped worrying about it.

these work

and can put up with 2-3 removals and re use

https://www.pentastarparts.com.au/store ... ail&p=1299

Dave

Interesting.
I put it down to the sheer weight of the headers and the naffness of the access to bolts to get any real leverage. It just has so much downwards pull that it never seems to achieve even distribution. Run it long enough the soot plugs the hole anyway.

Percys have always worked for me. There is an issue I have come across on big blocks that prevent good sealing. The area across the exhaust ports is machined flat which leaves a ridge above the ports of varying height. Some headers on some heads can contact that ridge along the top of the flange and stop the header pulling up square when you tighten the bolts. Always check for that and a bit of a bevel on the header flange is all it takes to clearance it.

Thanks for all the input Lads it's much appreciated.

Bought some Maxx copper header gaskets with o rings does the raised ridge around the ports face the engine or away from it and which side do the o rings go.