[DeTomaso] Head Gasket Holes

JDeRyke at aol.com JDeRyke at aol.com
Thu Jun 17 20:43:54 EDT 2010


Tony, FWIW, I have done about everything possible to a 351C cooling system 
over the years, and aside from theories and speculation on efficiency, the 
only thing that actually lowered water temps while on the road in our car was 
using a large-tube aluminum radiator. And on a friend's Gt-5, the complete 
removal of the thermostat drastically lowered his road temps - to below 150 
degrees F. while running an open track event in the summer desert! Putting a 
proper 351C thermostat back in abruptly raised the identical engine temps 
to 190-200 degrees with zero other changes. This car had the stock brass GT-5 
radiator in place. 
So you're on the right track with trying to increase circulation of water, 
but IMHO the two main obstructions are the radiator and the thermostat. All 
the others are details- including enlarging the gasket holes. Good luck- J 
DeRyke



More information about the DeTomaso mailing list