GM has a long block 350 with 8.5:1 compression that rates at only 205 hp with a 3 yr 36K mile warranty. Cuase you will be putting it ina vehicle that was not orig eqipped witha v8 warranty ithen only 12 mo/12K miles.

This motor is low on power cause the cam is so weak. I have seen these motor is GM performance parts dealers for as low as $899. plus tax. I would go with this, and change the cam for $120. with a decent cam you'l prob be at 260 ho and plenty of torque with a moderate 4 bbl carbs. that truck is so small with no weight in the rear end I cant see buying a 350 hp motor for 2,-3 K. My .02