What to do
 

Last night was adjusting the valves and guess what #2 exhaust valve does not open as much like the rest. Flat lobe. Engine is a sbc 350 I replaced rings bearings gaskets I did a budget rebuild. To do it right I got to pull the engine out and do a complete tear down and cleaning. I also have a little 307 that came in the truck for some reason I want to build it the only drawback on the 307 it has a piston ridge which will need new over size piston more $$$. what should I do 307 or the 350. I would like a efficient v8 maybe 300hp. Both would get a set off heads from jegs or summit

Re: What to do
 

350

Re: What to do
 

Any tricks on removing and installing the engine, truck has a sm465 transmission. I've done a buch of automatic transmission but never a manual

Re: What to do
 

I would definitely rebuild the 350 over the 307. 300 hp with a set of aftermarket heads will be easy with the 350. Check out some vortec heads. They’ll require a different intake, but they flow really well. Do your research first though, the factory vortec heads require some machining to take lift over .460. The aftermarket ones may not. A small cam and vortec heads would make more than the 300 you’re after. As far as R&R tips, I like to pull the engine and trans as a unit. To me it’s easier.

Re: What to do
 

If you can find one for a good deal, run a later vortec 350 block (880 casting). No more worries about a flat cam, and you get the good heads with it. In stock configuration it will move your truck along nicely.
You're looking at a rebuild anyway, this is a better foundation.

Re: What to do
 

Totally agree on getting yourself a used Vortec style 350 as a starter for the build....

Better heads
Roller style cam (no more flat lobes)
One piece rear main oil seal


As mentioned, you will need a different intake but the Vortec style 350 is the best choice by far...

Have fun

:chevy::chevy::chevy:

Re: What to do
 

Do NOT try to pull the engine and trans out in one swipe. You'll have to remove the trans first, then pull the engine. The transmission is about 1" too tall to fit between the bottom of the cab and the transmission crossmember. Been there, done that, got the greasy T-shirt to prove it.

Re: What to do
 

Can i leave the transmission in place?