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1976 C-10 Stepside Shortbox - Beagle's Build

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I will stand by the fact that a properly tuned and sized carb will always make the same or more power than any efi.
 
I really don't disagree with that. But efi for a daily driver is where its at. For my needs a TBI based fuel injection system is all I really need. If I was building an all out-----insert whatever racing thing you do here----- they it would be different. But for me a Holly or fast setup will be fine.
 
Time to kill the worthless babble in this thread.
I do not want a Dueling or Ryoken thread (on offense to those guys) I want to keep this thread clean with building documentation and real tech to read for anyone looking. small derailments or part of the forum world I get that. (all the big block posts are fine)But were way off the tracks here. If I just pissed in somebody's Wheaties, I don't care. I like to share and all but I only build my stuff to impress me and put a smile on my face. I appreciate positive comments and could give a damn about negative ones.

Anyway it's going to go like this.
496.
No cast iron heads.
a Fast system or holly system.
this is a performance based build AKA...no stock tbi...hubcaps...gmt400 wheel....blah, blah blah.
this truck is far from perfect nor will probably ever be....Daily driver.
not everything will be top of the line or the best... I am not made of money..
good parts (like the running 350) will be sold.
junk parts will be scrap.
not all posts should be taken at face value.

when I am done it will make me happy..
 
I would look for a head with a honest 395-400cfm at around 650 lift. Plan on rectangle port and a single plane. I wouldn't get crazy on compression because if you drive it a lot the need for premium becomes annoying. I tend to worry more about quench and a small dome tends to inhibit flame travel less.
 
80' 427 said:
This was a 766hp engine. The fast ez dropped it to 560. Converting the pcm to mega squirt made no change, reinstalled the 950 Holley back to 766hp. It was a first gen though.
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That doesn't surprise me, you are reaching the limits of the fuel injectors at that hp level , if your fuel pump could supply it you could crank the pressure up to 50 or 60 psi but even then you won't be making 760 hp with that throttle body and four ~80 lb/hr injectors. 550 hp is about the limit with 43 psi, and maybe 600 - 650 with higher pressure, if the fuel pump can maintain that pressure at that flow. If it was the EZ 2.0 throttle body then something was wrong with it as I believe that one has 8 injectors in it.

80' 427 said:
I will stand by the fact that a properly tuned and sized carb will always make the same or more power than any efi.
Click to expand...

I agree, it will, but barely and mainly at WOT numbers, not everywhere else. Fuel atomization and the cooling effect it has as it evaporates, etc. But for a daily driver EFI will have better throttle response, better part throttle power, and feel stronger than the carb from the seat of the pants meter. And unless you have that carb tuned absolutely perfectly, the EFI will likely make more power too. ProStock was mandated by NHRA to run Holley EFI for 2016, along with some suspension and body changes, among others. They are trying to make them pull wheelies for the crowd. So we will see how far they slow down. I think they were also limited to 10,500 RPM at the same time. So it won't all be EFI, but they will slow down before they start picking back up again.

beags86 said:
Anyway it's going to go like this.
496.
No cast iron heads.
a Fast system or holly system.
this is a performance based build AKA...no stock tbi...hubcaps...gmt400 wheel....blah, blah blah.
this truck is far from perfect nor will probably ever be....Daily driver.
not everything will be top of the line or the best... I am not made of money..
good parts (like the running 350) will be sold.
junk parts will be scrap.
not all posts should be taken at face value.

when I am done it will make me happy..
Click to expand...

So since its daily driver material, what type of cam you plan on running?

80' 427 said:
I would look for a head with a honest 395-400cfm at around 650 lift. Plan on rectangle port and a single plane. I wouldn't get crazy on compression because if you drive it a lot the need for premium becomes annoying. I tend to worry more about quench and a small dome tends to inhibit flame travel less.
Click to expand...

You sound like you are planning a nice 750 - 800 hp solid roller motor, and he sounds like he is planning a decent 550 - 600 hp hydraulic cam daily driver?

They both sound fun to me! :cool1:
 
For a cam I am pretty much open for input.
I have set some engine goals but haven't put alot of in depth thought into everything. I will not be going roller. That will happen later on.:woot: for flat tappet!! Of course a proper cam for injection.

And yes I know about all the benefits of the roller setups. BBC's are $$$$. Got to save somewhere. My work commute won't know the difference. Nor with the state park on a Sunday picnic.
 
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folkenheath said:
That doesn't surprise me, you are reaching the limits of the fuel injectors at that hp level , if your fuel pump could supply it you could crank the pressure up to 50 or 60 psi but even then you won't be making 760 hp with that throttle body and four ~80 lb/hr injectors. 550 hp is about the limit with 43 psi, and maybe 600 - 650 with higher pressure, if the fuel pump can maintain that pressure at that flow. If it was the EZ 2.0 throttle body then something was wrong with it as I believe that one has 8 injectors in it.
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Agreed ^^^
FAST EZ EFI isn't meant to support 760hp. You can however run 2 throttle bodies and that bumps up the capability. But enough about this nonsense. The FAST system will be perfect for what beags86 is looking for in a DD.
 
Until I get the Holly terminator system...




Not because I need it....because I want it
 
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IMG_20160109_115719799.jpg IMG_20160109_120106791-800x450.jpg IMG_20160109_120225849-800x450.jpg IMG_20160109_120909216-800x450.jpg

Well this happened. 9am start. Pulled cab off by 1. Not bad.

Pulled the valve cover. Looks clean.IMG_20160109_122705453-800x450.jpg

Ran the block numbers.
Comes back as a '73-'85 4 bolt main, truck block.
Heads are 781
Casting date was '78.
Guess the seller wasn't lieing. When I bought it he "thought" it was a '78.
 
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82355 said:
Haha, actually those are not smog junk. Those are the good heads........

Martin
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OK tell me why. From what I read they were not desirable for a performance build....ah what do I care. I won't be using them anyway...OK after reading some guess they aren't bad.
 
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OK, what the hell is the deal with these heads? Someone educate me. The interwebs (which is always right:screwy:) is seemingly all over the place.

Edit: finally found some decent I info on these. Guess I will toss them on the self if I ever do a 4wd BBC they would be fine to have.
 
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beags86 said:
OK, what the hell is the deal with these heads? Someone educate me. The interwebs (which is always right:screwy:) is seemingly all over the place.

Edit: finally found some decent I info on these. Guess I will toss them on the self if I ever do a 4wd BBC they would be fine to have.
Click to expand...

Yeah those are good heads!
I got a set on on a shelf that need to make there way onto my 454.
 
Yeah, it didn't help I had put in the wrong number when I was researching!! Lol

I have never actually built a big block before so I never cared about numbers and what not.
 
folkenheath said:
Well they are both fun but a different kind of fun.



Are all the upper valve cover bolts twisted off? Its funny how you pull the whole cab off before you remove the valve cover. :wink1:
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Sorry we didn't get more time to chat Saturday. So many kids! It was overwhelming for someone who isn't a dad yet! And where did the night go!?!?
Pm sent.

I had steam cleaned/power washed the engine right before I pulled the cover. Perks of being on the farm. And the
holes had filled in with water.

And Yeah why lean over the fender when you can just pull the cab and front clip off!?!?
 
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