For Those Of You Running A Hardin Marine Thermostat Kit On Your 455's...

[Jetaholic]

What manifold are you guys using with them and what bolts? I was trying to use some ARP bolts from Mondello, but the bolt flange hits up against the side of the Hardin Marine thermo housing and the bolts won't go in right. I'm running the Edelbrock Performer manifold.

[nyjetboat]

try some allen heads ,stainless pref :mad: :)

[Jetaholic]

Thanks. U happen to know what size an Edelbrock Performer manifold uses?

[ironman44bear]

5/16-18 or 3/8-16 I have both in s.s. call me tomarrow :crossx:
Ironman