Hello Richard!Come on over to the "other site"Chevys are welcome,lol. Yeah,I put a modified GMC 302 in my 37 Chevy pu to replace the modifed 261.It bolts in after you move the radiator foward and fab up a spacer for the front motor mount.
GMC's are somewhat expensive to modify,but not that much more than a 292 Chevy perhaps,which is a more pricey than a common V-8 unless ya shop carefully for bargins.
A modified GMC 302 that's streetable,headers,cam,forged higher compression pistons,more carb,makes about 240-260 HP and 340 lbs ft of torque with a mildly reworked head.The Chevy 292 is probably capable of more power for the same money spent as mentioned above.For instance, bearing sets for the GMC are expensive,specially for better bearings like the discontinued Clevite 77's or GM Morriane 400 bearing sets.
Impress the public? most don't know what there're looking at anyways.I've had guys look at the 302 in my 37,ya see headers,Holley 4 bbl,extra crankcase breathers and they ask "is that the stock flathead 6?
Anyways,the 302 looks old school under the hood and I like it..