Casey Griffin

Im instaling a pair of trick flow heads on a 71 350 and im not sure what temp sensor to use or the correct spark plugs. any help would be appreciated.
Thanks Casey

C3 Stroker

I used the stock sensor in my Trick Flow heads in my '69 350....should fit in stock location. Trick Flow recommends which plugs to use (along with the proper gaskets) in their instruction info. The plugs were AC FR3LS....that number is now p/n #41-629. This is the recommended starting point.

Casey Griffin

The sensor from my stock heads is not the same size it is larger any suggestions
Thanks

LB66383

What are you using for an intake manifold? Is there a place near the thermostat housing to screw in a temp sensor?

There are reducers available to adapt the sensor thread to the size of the hole in the head. I believe it's 1/2" pipe to 3/8" pipe but I could be off.

'75

The choices are to put it into an available opening in the intake manifold or tap the hole in the head to 1/2 npt.

...Roger...

Some have had luck turning down the threads to the smaller size.

Casey Griffin

BINGO! I have a edelbrock performer and it does, switched plug for temp sensor and off we go thank you.
Casey