Building a Chevy 350? Chevy guys?

mystang

mystang

Club Member
Figure I might as well build this 76 4 bolt 350 I have just collecting dust. I have NO idea, about chevy motors, or anything chevy really.:lol: I may put it in my truck, or my mustang. So, what all would I have to do, to have a 10.50 - 10.80 car on motor? Say, weighing around 3100 or so.
thanks
 
Where to start?
MSD 6al
Holley 750 dp
Edelbrock Victor “E” Super Stock manifold
Good flowing heads with 2.02 1.60 valves (milled)
.500(I) .500(E) 323/329 duration Cam
Flat top pistons Block punched .030 over (10.5-1)
obviously bigger oil pan/pump
3500/4000 stall (Auto trans)
4.56 rear gears
I would love to go with a .600 lift Cam but I'd be scared to over rev the motor.
 
Tony Soprano said:
Where to start?
MSD 6al
Holley 750 dp
Edelbrock Victor “E” Super Stock manifold
Good flowing heads with 2.02 1.60 valves (milled)
.500(I) .500(E) 323/329 duration Cam
Flat top pistons Block punched .030 over (10.5-1)
obviously bigger oil pan/pump
3500/4000 stall (Auto trans)
4.56 rear gears
I would love to go with a .600 lift Cam but I'd be scared to over rev the motor.
Click to expand...

Well, I already have an MSD digital 6 box, but that's it for chevy stuff.:lol:
I need to run the casting numbers on the heads, see if they are the better stock ones or not.
 
this is my opinion
I would put in a 4.00 crank make it a 383
Put on some Vortec Aluminum heads-great bang for the buck
Get the Edelbrok Airgap intake.
Put in some 10.2 compresion pistons
Put in some 4.10 gears, and a th400 with a 3500 stall.
Put in a cam like stated above and hang on...

mill the heads if you want all motor, if not Blast on a 150 shot
 
Depends on whether you want to do it cheap or not. The heads on it aren't worth it, pretty much no factory head is worth working with when you can get a set of fully assembled stock vortecs for $300 and modified heads for $600. The aluminum edelbrock etecs are a good version of them, but once you look at aftermarket you can pretty much pick anything you want. And stroking the motor is a pretty good way add some more power, make sure to have it balanced though.
 
I think it's going to take more than just a vortec style head to get a 3000lb. car in the 10.50-10.80 range, but I dont know. The Edelbrock e-trecs do make excellent power for the moeny, I'd like to see how a set of ported ones perform.
 
I'll be spraying it for sure. Ilike the sound of those vortec heads. My friend built a 383 a few years ago, he had mentioned using the 400 crank and balancer?? That would be sweet, trying to keep the price reasonable. I have this engine and a auto "out of a 76 3/4 ton truck" not sure whethewr it's a 350 or 400 tranny though.
 
mystang said:
I'll be spraying it for sure. Ilike the sound of those vortec heads. My friend built a 383 a few years ago, he had mentioned using the 400 crank and balancer?? That would be sweet, trying to keep the price reasonable. I have this engine and a auto "out of a 76 3/4 ton truck" not sure whethewr it's a 350 or 400 tranny though.
Click to expand...
I think the 350 came wih the 350trans...400 and above came with the 400 trans....AJ has great ideas about stroking the motor...So much you can do to a 350, just depends how much $$$ you want to toss into the motor....Do you have an engine builder?
 
mystang said:
I'll be spraying it for sure. Ilike the sound of those vortec heads. My friend built a 383 a few years ago, he had mentioned using the 400 crank and balancer?? That would be sweet, trying to keep the price reasonable. I have this engine and a auto "out of a 76 3/4 ton truck" not sure whethewr it's a 350 or 400 tranny though.
Click to expand...

That's what I'm building, a vortec headed 383. I'm bench racing here, but magazines have gotten 450 ft/lbs and 420 horse out of the combo. Like I said before, the vortecs are lift limited in stock form to .450". I have mine modified to take .525" and it cost some coin - I had to use those beehive LS1 springs and retainers. I'm going to be running a comp cams XE274 with 1.6:1 rockers. For the amount of $$ I have into modified these stock vortecs (the initial thought was to save $$ by not having machine work done), I should have just gone aftermarket. If I were to do it again, I'd just get a set of iron eagles or something. Anyhow, I bought my shortblock balanced and fully assembled with balancer and flexplate. To fit a stroker crank in the 350 block, you have to notch the edges of the bock (where the oil pan typically bolts) to clear the rod bolts.
 
ShadowRuleZ said:
That's what I'm building, a vortec headed 383. I'm bench racing here, but magazines have gotten 450 ft/lbs and 420 horse out of the combo. Like I said before, the vortecs are lift limited in stock form to .450". I have mine modified to take .525" and it cost some coin - I had to use those beehive LS1 springs and retainers. I'm going to be running a comp cams XE274 with 1.6:1 rockers. For the amount of $$ I have into modified these stock vortecs (the initial thought was to save $$ by not having machine work done), I should have just gone aftermarket. If I were to do it again, I'd just get a set of iron eagles or something. Anyhow, I bought my shortblock balanced and fully assembled with balancer and flexplate. To fit a stroker crank in the 350 block, you have to notch the edges of the bock (where the oil pan typically bolts) to clear the rod bolts.
Click to expand...

I have the EXACT same combo, almost. XE282 with solid lifters, less compression, and stock stroke. 430HP at the crank, 460 ft. lbs. dynoed. Honestly stroking a 350 is pretty redundant because of cam limitations with the stroker crank. If you do anything, put a 6in. rod in it and spin it more.

10.50's on spray no problem, but why not try to go 10.50's on motor on pump gas and then spray it a little after that? A good set of ported Brodix or other quality head and a solid roller with 10/11-1 compression will get you there without to much problem.
 
Any SBC buildup is going to run 3-10K to be fun. An LS1 out of a donor car with a 150-200 hit would be just as fun to swap into a vehicle as a nitrous lab rat. Probably the same amount of cash but it would be driveable, reliable, etc. Below is what I would do for a cheap streetable 355 ready for nitrous hits.

stock crank
Scat 6" 7/16" rods
Forged flat top from Diamond
11.0:1 compression roughly
Machine work with .030+ bore(355)
Balancing
Dart Pro 1 200cc heads(64cc chamber)
Comp. XE282 hyd. roller
Pro Magnum hyd. roller lifters.
Super Victor intake
Holley 750
Long tubes

Something like that could run like crazy or be a dog. A used LS1 with a 150 hit could be a lot more fun and possibly cheaper, driveable, etc..
 
Tony Soprano said:
I think the 350 came wih the 350trans...400 and above came with the 400 trans....AJ has great ideas about stroking the motor...So much you can do to a 350, just depends how much $$$ you want to toss into the motor....Do you have an engine builder?
Click to expand...

Yes, my friend and I are going to build it.
 
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