The 993 heads are less prone to cracking, they have a thicker deck and cut them for 2.02 or 2.05 with 1.6 exhaust, do some bowl clean up port match to a 1205 intake gasket or 1206 clean up pinch point slightly open exhaust port a little match intake to them.make great stroker heads for 383 ! Iv done several works great !
I ran 882 heads on my 73 chevy 1/2 ton van.flat top 350.350 turbo trans with a 11 B&M Stall.373 gears.My van kicked ass on the street.Those heads crack if the temp goes over 235 degrees.
That all depends on what you’re looking for and what your building. Originally these where supposed to go in a cast bottom end 357 (40 over 350) with a Erson hydraulic flat tappet .468/.480 lift 222/231 duration with a 110lsa. But we ended up putting aluminum heads on that engine.
@@BoneyardRevivals Mines 30 over , thinking flat tops , maybe plaining? im on a limited budget and all i can get is these 993 close to me i have a new cam that a friend gave me .050 duration is218 in 228 out, 457valve lift on in and i think if i see his scrawls right 479 on exhaust lobe centers 110 118 respectively , should work i hope , thanks so much for sharing your knowledge !!!
It really depends on application and what your wanting to do with. I’ve seen 460-470 hp it dirt motors. With a 450 cam lift rule and a lsa of 106- 240 at 50. By David vizards 128 formula most sbc a 107 lsa is optimal.
The 993 heads are less prone to cracking, they have a thicker deck and cut them for 2.02 or 2.05 with 1.6 exhaust, do some bowl clean up port match to a 1205 intake gasket or 1206 clean up pinch point slightly open exhaust port a little match intake to them.make great stroker heads for 383 ! Iv done several works great !
Man it's so cool that Joe is teaching you as you go and letting you learn on his machines.
So cool to watch these vids. I love this stuff
I ran 882 heads on my 73 chevy 1/2 ton van.flat top 350.350 turbo trans with a 11 B&M Stall.373 gears.My van kicked ass on the street.Those heads crack if the temp goes over 235 degrees.
Glad im not th only one that dislikes the extra casting. Looks much better
Pro Form 66484 is really good stud remover!
How much you mill off for studs ?
Boy put them 205 valves on those heads,rip rip
The nuts from old SBC connecting rods hold up a bit better when removing rocker studs
That’s an interesting tip, I’ll have to try that! Thanks.
How can you tell if you can't resurface your heads anymore on a vortec head?
When get baked pull studs then while it’s hot
Add heat?
with the 993 heads on a 350 , what cam you recommend
That all depends on what you’re looking for and what your building. Originally these where supposed to go in a cast bottom end 357 (40 over 350) with a Erson hydraulic flat tappet .468/.480 lift 222/231 duration with a 110lsa. But we ended up putting aluminum heads on that engine.
@@BoneyardRevivals Mines 30 over , thinking flat tops , maybe plaining? im on a limited budget and all i can get is these 993 close to me i have a new cam that a friend gave me .050 duration is218 in 228 out, 457valve lift on in and i think if i see his scrawls right 479 on exhaust lobe centers 110 118 respectively , should work i hope , thanks so much for sharing your knowledge !!!
Thant should run pretty good. That’s close to the cam in the 355 we built for my square body.
It really depends on application and what your wanting to do with. I’ve seen 460-470 hp it dirt motors. With a 450 cam lift rule and a lsa of 106- 240 at 50. By David vizards 128 formula most sbc a 107 lsa is optimal.