Need suggestions

Wanting to build a bbc with a 8-71 roots blower. It'll be injected on alky. I was thinking a 540 with around 12 to 1 comp, brodix 2 extra heads, short deck dart block. Rods, alum or a good steal rod? I was wanting to just run fuel at the top for now until I get faster and used to the tuning. Ignition, would a dig 7 msd or should I go with a mag? Would a bug catcher hat set up be the best route, I run a Ron's terminator now and was thinking about 2 of them but that is costly. I'm wanting to run a few quick 8's and a outlaw series we have, but I don't have a fortune to spend. I'm planning on selling my 582 after this season and putting something together and I don't want to spend money on something I don't need. I'd like to be able to change pulleys and bracket race it at 4.50's or 60's. Any suggestions from you guys would be appreciated.

 

Mag, Bird, Aluminum rods.

Thats just me, I'm sure an msd 7, bug and steel rods will work fine, we all have our personal preferances.

 

I've seen some Mallory sprint mags for sale, are they up to power for something like this?

 

Regarding a mag, if you want to keep the build on the cheaper side give Spud @ Fuel Injection Enterprises a call and he can set you up with a Mallory Supermag (refurb). He will advise you as to the amp rating.

 

Talked to Spud already, he said the Dig 7 would be good to 15 psi. Probrably will just go with a mag and not have to change something later. Haven't had much experience with a mag, will have to do some research on cut off switch, 2 step and whatever else I need to change.

 

why not get an MSD-8+ as its the gruntiest non mag ignition available. Or buy by refurbished MSD-10+ and coil for $800 ! Cheers, Graham

 

This ^^^^^ is good advice, I'm still kicking myself for not doing it. Now I'm stuck with my BBC for a while to try and justify the cost.

 

"Will" hit the nail on the head...dave

 

Where are you buying you refurbished MSD 10's at? That's better than $1500 for an 8. The Hemi sounds good, but I was always a chevy guy. BBC heads are cheap unless you go wild, dart blocks and rotating assy aren't cheap. OK, you got me thinking now, is there any good info that you know of on the net to get any ideas? Hemi would be new to me for sure. I now have a 582, alky injected, that runs 4.50's. I'd like to run low 4's in the 1/8 if need be. Right now 4.20's would get me in most quick 8's and the pro outlaw series.

 

its one that I had as a spare and was just returned from MSD direct

 

Mags

I still run an old Vertex, with around 1500hp, never misses a beat. Bought it off Ebay, and had it rebuilt. Total cost, around 600 bucks.

Its not perfect and it has to be costing me some power but it does what I need...every time.

 

A friend of mine says that Vertex messes with other electronics such as the 2 step. I don't know, just repeating what he told me. He has a 4.15 small block, blown, dragster so I figured he knew what he was talking about. I've seen Mallory sprint mags for sale reasonable, but know nothing about them. If I go mag, I'll send it to Spud so he can ck it out.

 

There has been previous posts re power output of mags etc, a Promag44 is by far the highest output at 900mJ, the second is a MSD-10+ at 700mJ, the rest are way behind BUT you have to run an on board battery for the MSD-10+ so this may be a limiting factor. I love them as they start real easy and the multiple sparks keep plugs clean

 

just keep in mind...there is no differance between a V8 chevy or ford or mopar..all they are is a big air pump,,now that said go with a mopar super strong bottom end and killer heads you will never look back.dave

 

I really don't like descussing it really because when I look back at what I have into my BBC I could have build damn near 2 Hemi's.

Just wish that someone had kicked me in the ass long ago. Oh well, the chevy will still be fun, (or at least thats what I keep telling myself)

 

If I go bbc, it'll be a dart block, callies crank, and so forth. I wouldn't attempt a stock or truck block. My 582 I have now has all the good stuff in it. I don't have a bunch of money but you get what you pay for. I've been looking at hemi stuff, what I can find on the net, and it's kinda pricey. What size would you build and what heads would you run?

 

Vht, check your pm.

 

If your set on builbing a Chevy, I would build a 4" stroke with Brodix 3xtra cnc 380 runner heads. The most important thing to do is find youself a good engine builder that has experience with this style of engine. These things don't just bolt together!