I'd go with block huggers for sure...

I got a pair of ceramic block huggers that fit nicely under the hood of my '37 and that's about as small an engine compartment as you're ever gonna see...

~Trev

It's a sin to crush old tin...
My 1955 Belair's Webshots Album
My 1937 Chevy Pickup's Webshots Album (now sold)
Stovebolt link to my 1937 Chevy 1/2-Ton Pickup (now sold)
Stovebolt link to my 1936 Chevy 1/2-Ton Pickup Truck (now sold)