Looking at buying a ZZ383. Going into 79 Malibu. What converter should i use? Car has 9-inch w/ 4.56,28 inch slicks. Also what intake/carb. Buying new transmission also, should i stick with TH350? Currently have a Holeshot 3000 converter. Thanks.
ZZ383
- Thread starter lastchevelle
- Start date
Are you happy with 383? What size slick? Is that a Holeshot 3600? What are your shift points? What kind of transmission? Would a Victor Jr. be the same as the GM intake?What's the part # of the carb? Sorry for all the questions but i need to get parts ordered, only 8 months til next race season! Thanks. Matt
I would run a TH350/TH400 and 28x10.5 slicks or 28x11.50 ET Streets or 275/60/15 drag radials. For a converter, I'm not a fan of the B&M stuff. If you must get a generic off the shelf converter get a TCI street fighter or super street fighter, a redneck 3500, or if you have the coin, a custom built ATI. As far as intakes, I would get the GM single plane, simply because the engine is built to use that intake.
It is a heck of a motor. I ran 275/60 MT Drag Radials, Holley HLY-0-80528-1, TCI Super Street Fighter, TH350, shift at 6400. IMO the GMPP intake is the better choice for this motor.
There is an exhaust port situation you need to be aware of. The Fastburn heads have the centerline of the exhaust ports raised relative to the centerline of the bolt holes. This creates a port mismatch with a conventional SBC header. I have Stahl with adapter plates so it was easy for me to fix with custom adapter plates.
All that said, I am going BBC next year.
Feel free to ask any questions.
Good luck with your project.
Mike
There is an exhaust port situation you need to be aware of. The Fastburn heads have the centerline of the exhaust ports raised relative to the centerline of the bolt holes. This creates a port mismatch with a conventional SBC header. I have Stahl with adapter plates so it was easy for me to fix with custom adapter plates.
All that said, I am going BBC next year.
Feel free to ask any questions.
Good luck with your project.
Mike
I currently run Hooker Super Comps, could i buy adapters and still use them?Was your trans built by a local shop or did you buy one? Thanks. Matt
BTW, why changing to BBC?
BTW, why changing to BBC?
i agree with the above statement about the convertor get a good one i junked the b&m and got a ati what a difference felt like a different engine
lastchevelle said:
Your headers will bolt up and work, as would any conventional SBC header. What happens, though, is the exhaust gas exiting the head will only "see" about 2/3 of the primary tube opening, the other 1/3 will be covered up by the header flange. If you look at your headers, the bolt holes line up along the centerline of the primary tubes. For an optimum header on the Fastburn head, the centerline of the bolt holes should be 0.200" lower than the centerline of the primary tubes. This would effectively raise the entire header on the head and make the exhaust ports line up with the primary tube openings.
I am not sure how much negative impact there would be by using a conventional SBC header with the Fastburn head. Probably the most economical solution for you would be to weld up the existing bolt holes on your headers and redrill them 0.200" lower. Someone on here did that but that was a couple years ago and I don't remeber who it was. I think Hedman makes headers with the correct flange for the Fastburn heads but I don't know if they make them for our chassis. They might work, though.
The adapter plates I was talking about would not work for your headers. Mine are Stahl, they have a plate that bolts to the head using the six regular bolt holes in the head and the header bolts up to the plate with seven bolts entirely a different pattern.
Stahl can build you the exact header you need but this is an expensive option. About $1200. IMO they are the best header I have ever used, in fact I just ordered a set from them for my BBC.
As far as a trans, I used a TCI. I would build my own but I don't have the time. If you have someone competent local I would consider that route. Or build your own, they are not that complicated.
It might be worth a shot to call Schoenfeld and see if they would you a set of headers with the correct flange.
If you think of any more questions, ask away.
Mike
Money well spend 11.50 out of the crate deff recommend getting one single plane intake 750 holley th350 tci super street fighter conv wit nos plate 8.5 wit 4.11 31 spline axles 29x11.5x15 hoosier qtp 11.55 @116 1.59 60 foot deep staged
stroker81 said:
Will this intake clear a stock hood with a drop base and a short filter? And for a more street less strip car, you still like the single plane over say a rpm airgap?
Thanks for the p.m. about the zz383 that you sent me earlier this year 8)
