Which thread at LS7 Thermostat Housing

[BenGTR]

Do you know which threads are used at LS7 Thermostat Housing?



UNF/BSP? Which size? Cause I have to buy the adaptors to the heating-hoses ...


Thanks a lot!

[UltimaCH]

I thought that the Yanks had adapted the metric system in their engine builds? Not 100% sure and I stand to be corrected

[BenGTR]

Just got the info 3/8" and 1/2" NPT .

[GTRCLIVE]

All NEW LS7 aka 2005 onwards are metric. Remember though there was 1960's big block that also used the LS7 name so make sure you get the right year motor...

[Steve_D]

GTRCLIVE said:

All NEW LS7 aka 2005 onwards are metric. Remember though there was 1960's big block that also used the LS7 name so make sure you get the right year motor...

If those are intended to be taper fittings then I could understand continuing the use of imperial as metric taper threads are not common. However, with the machined face I can see no reason for choosing a taper thread.

Steve