CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.
350 to 383
- Thread starter ftn96
- Start date
Compression is determined by which pistons you choose for the rebuild. There are pistons for stock compression with either 5.565" or 5.7" rods.
I guess your milage will be close to what you are used to on your current setup, maybe a little bit worse. The 383 will of course suck more fuel & air....and you probably will be on the throttle a bit more since it´s so d*mn FUN !!
Andreas
406cui of pure sh*t
I guess your milage will be close to what you are used to on your current setup, maybe a little bit worse. The 383 will of course suck more fuel & air....and you probably will be on the throttle a bit more since it´s so d*mn FUN !!
Andreas
406cui of pure sh*t
D
**DONOTDELETE**
Guest
I am also planning on a 383 for next time. My 350 has already been rebuilt/bored over 030. Is there a difference in stroker kits when buying a kit for an engine that has been bored 030 over as compared to a 350 that has never been rebuilt? I would imagine it is only larger pistons. What do you guys think? Any ideas on a good size cam for a daily driver? I'd appreciate any input you guys can offer. I want a lopey idle but good streetability.
k5kraze
Registered Member
In a 383, I would suggest using a split-profile cam , e.g. a Comp Cams Dual Energy or one of their xtreme-energy cams.
A friend of mine uses a dual energy cam with 211/221 at 0.050, .442/.465 lift and a 110 deg. LSA in a 388 stroker ( 350 bored 0.060 over, 9.6:1 compr. ratio ) with World Sportsman-Heads and 5.7-inch rods and got about 407 hp@5000 and 461 (!) lb-ft@3600, which should be enough for any blazer.
If you want even more power, you could change to a roller cam and full roller rockers, but I personally dont think
that you will feel a major difference at lower rpms. (But you will definitely feel a major difference in your wallet).
Armin
"Do it today, tomorrow it may be illegal !"
A friend of mine uses a dual energy cam with 211/221 at 0.050, .442/.465 lift and a 110 deg. LSA in a 388 stroker ( 350 bored 0.060 over, 9.6:1 compr. ratio ) with World Sportsman-Heads and 5.7-inch rods and got about 407 hp@5000 and 461 (!) lb-ft@3600, which should be enough for any blazer.
If you want even more power, you could change to a roller cam and full roller rockers, but I personally dont think
that you will feel a major difference at lower rpms. (But you will definitely feel a major difference in your wallet).
Armin
"Do it today, tomorrow it may be illegal !"
keith
1/2 ton status
My block is 60 over and I must assemble it with one piston to check the clearance. You then mark the block and grind it or have a machine shop do it. So my engine will not be a 383 but really like a 389.
79 Blazer 6"lift 35's locked/4:56
79 Blazer 6"lift 35's locked/4:56
D
**DONOTDELETE**
Guest
Thanks, Armin. Does he do okay running super unleaded?
nyyef
1/2 ton status
i have built one, and helped build another 383, none of them needed clearance for the rods or the crank. but a friend built one and the rod bolts interfered with the cam. so i guess its just discrepencies in block dimensions.
Knife.
knife.coloradok5.com
Knife.
knife.coloradok5.com
keith
1/2 ton status
What rods did you use? I'm using the 400's
79 Blazer 6"lift 35's locked/4:56
79 Blazer 6"lift 35's locked/4:56
I just replaced the 350 in my new suburban with a 400 short block thats 30 over. To make it run right at WOT I had to up the fuel PSI by 1.5 it now runs like a pony car
I understand the jeep thing I drive a BLAZER!!
Ken
I understand the jeep thing I drive a BLAZER!!
Ken
