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1976 C-10 Stepside Shortbox - Beagle's Build

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OK Martin. You finally got me convinced. I'll forget all the build plans in my head that I've had swirling around for months and put a stock 402 BBC iron headed engine, w/ a factory tbi, Dump my five spoke wheels for some steelie w/ hubcaps. Cancel my order for a Polished steering wheel for some GMT 400 flair. Get a factory C-60 tach for the dash....maybe a sm465 while I am at it....:cool:;):thinking:...lol...


On another note about the iron head weight. The front springs currently in the truck are lowered springs. They are aftermarket. I do not know who made them. I am afraid that a full iron headed BBC would weigh to much for the current setup. They dont ride super well now. big potholes aren't fun. Pretty sure more weight is NOT what they need.

Most likely I will have to change them. But I want to put that off til next winter because I want to do a full airide setup with tubular arms. Just like freiburgers muscle truck. I have no monies allowing for full front suspension build at this time.
I would like to take this truck to some events and auto cross it. Nothing super competitive just some fun at a good guys events on post '72 day. Stuff like that. So I want to build for the future some too.

Trying to avoid the "might as well" snowball effect.
 
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beags86 said:
OK Martin. You finally got me convinced. I'll forget all the build plans in my head that I've had swirling around for months and put a stock 402 BBC iron headed engine, w/ a factory tbi, Dump my five spoke wheels for some steelie w/ hubcaps. Cancel my order for a Polished steering wheel for some GMT 400 flair. Get a factory C-60 tach for the dash....maybe a sm465 while I am at it....:cool:;):thinking:...lol...
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Good boy, the world needs more Martins out there. :cool: :haha: :rolleyes:
 
beags86 said:
Trying to avoid the "might as well" snowball effect.
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You're probably doomed. Unless you stop hanging around here, 95% of the CK5 membership will egg you on to bigger and expensiver mods. The snowball will catch up to you. And then it will run you over. You MightAsWell jump on board now... :popcorn:
 
beags86 said:
I am looking at dart pro 1 or the trick flow oval port heads now, but I have no idea if I'll end up with those. Both are raised port. But the Dart heads run about 2500, while the Trick Flows come in around 2. Both sets built over 615 horses on a 496 test mule.
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I recommend Dart Pro-1 Oval port or Brodix RR-O for a nice hydraulic roller 489/496 build. The Brodix have more chamber options and stock height exhaust ports if that matters for your build.

I agree with John, don't get any of that "professional products" or "Patriot" or other offshore junk.
 
I wouldn't look at any head that doesn't say AFR on the end. I like my Brodix heads but will go AFR next time.
 
My Brodix race rite ovals are OK after $1500 with of port work.
 
Are you serious John?

IMO, AFR is over rated by the mag companies and over hyped and too expensive for what you get. Yes they are an excellent head, just not the absolute best I don't think. I don't see that many AFR heads in the winners circle at the drag strip. If you want CNC porting, I would rather have a CNC ported Dart or Brodix head than an AFR head. But most as cast Dart or Brodix are a much better value than the AFRs. Although the only CNC ported heads I have are RFD because they were better for that particular application, so who am I kidding.

Did you port them yourself on your flow bench?
 
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I bought what would be a flow improvement over my ported iron ovals. They didn't flow as much out of the box as I had hoped. I will say that I don't have as much experience with heads like you so you may be right but the guys i know like Jon Wischman that are Really fast use AFRs, maybe they drink the coolaid, idk. I do know if it was a 496 I would be looking at a 315-325 cc rectangle and not a oval. I have seen plenty of ho hum 496s because sure they make 700ftlbs but they run out of air in a hurry. I hate Dart but it is my iron eagle experience.
 
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beags86 said:
OK Martin. You finally got me convinced. I'll forget all the build plans in my head that I've had swirling around for months and put a stock 402 BBC iron headed engine, w/ a factory tbi, Dump my five spoke wheels for some steelie w/ hubcaps. Cancel my order for a Polished steering wheel for some GMT 400 flair. Get a factory C-60 tach for the dash....maybe a sm465 while I am at it....:cool:;):thinking:...lol...
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I don't know that I recommended any of those things.

Is your big block a 402?

Martin
 
Yeah, that would all be nice (except the SM465), but I do not recall recommending any of it in this thread.

Martin
 
You don't think much of the FAST setup either though, do you? Or have they improved it yet?

Martin
 
Well if you spent a lot of time or money porting the iron ovals then you probably had them working pretty good I bet.

I hear you on the port shape, totally depends on the rpm he plans to turn I guess. The oval ports these days can make pretty good power, some of them flow just as well or better than the rect ports with higher velocity, so it really comes down to velocity profiles at that point, which means how many CID and how many RPM, not necessarily the amount of air. Some pro head porters say velocity is more important than flow, but then again they know exactly what the velocity is, we don't. I guess we could calculate it if we knew the cross sectional area and flow rate, but the area is changing in the port as it twists and turns and conforms from the intake shape to the valve bowl.

I say stick with oval port for a hydraulic roller, if you go solid roller then go rect port, of course there are exceptions to that and more than one right way to do it. And I am assuming if one goes solid roller they are going to take advantage of the extra RPM that it allows. If not then its just not worth the risk of running solid roller on the street I don't think.

As far as experience, I port heads for fun, but I don't have a flow bench, so you may have more experience than me.
 
Factory TBI, I agree, no way. Aftermarket high pressure performance TBI with the injectors below the butterflies and running at 40 psi or higher, I think works way better than a carb for driveability and street/strip and offroad performance. I am happy with my FAST EZ, although the Holley stuff is surpassing it these days and more easily upgradeable for fine tuning.
 
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I Have seen a 200hp loss going from a 950 Holley to a fast ez.
 
I honestly won't go to efi on.my BBC unless I weld on the injector bungs on my Victor and use a dominator Throttle body.
 
Huh. When I had my 406 on the dyno the fast system picked up 10 HP over the Holly 850 DP.
 
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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