Tb
Yeah, the BBK supposedly isn't any good, but I have one and have had zero issues with it. Try Holley, they make TBs but their advertising on them is nill. Pretty sure you could call and get some part #s.
Thread Starter
On The Tree
Joined: Oct 2003
Posts: 195
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From: Upstate NY
would it be worth it to buy a tb, im only ganna have whats in my sig, plus lt4hot-cam kit, and lt4 intake manifold (only cause the looks is worth the $230 haha), it will still run stock heads.
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Teching In
Joined: Dec 2003
Posts: 31
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From: Houston (Pearland)
Originally Posted by dhdenney
Yeah, the BBK supposedly isn't any good, but I have one and have had zero issues with it. Try Holley, they make TBs but their advertising on them is nill. Pretty sure you could call and get some part #s.
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I have a BBK 58mm also. No problem here, ever. The only "issue" I had was that the casting on the air foil area was *very* rough. A few minutes with a die grinder fixed that right up. Shouldn't have to do that on a new $320 TB, but alas, I did.
The Holley unit is a CNC billet piece. And I think the AS&M is also. But the BBK is cast, so it doesn't "look" as pretty. But I've had zero functional issues with my BBK.
I opened the holes on my intake with the die grinder. Wasn't tough at all.
The Holley unit is a CNC billet piece. And I think the AS&M is also. But the BBK is cast, so it doesn't "look" as pretty. But I've had zero functional issues with my BBK.
I opened the holes on my intake with the die grinder. Wasn't tough at all.
Launching!
Joined: Apr 2004
Posts: 271
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From: Regina, SK
Originally Posted by 93transam
What tools do you need to put a 58mm tb on. I heard the intakes needs to be bored. How much trouble is this to do yourself?
unless you running forced induction or have a big stroker a 58mm tb isnt worth it usually. some all out 383s can benefit from them, but they are pretty serious engines. even a lot of forced induction cars dont need anything more than a 52mm tb. youd need the car to be on a dyno to see if it helps. unless you know the calculations for figuring it out.
TECH Senior Member
Joined: Jun 2003
Posts: 9,339
Likes: 3
From: NYC metro area
I have the BBK 52mm TB. The thing is a piece of ****, the throttle has gotten stuck open 4 times to date, the first three times were minor but the last time the throttle was stuck open and the motor was stuck revving at about 3500 RPM. It wasn't cool. The overall make of the BBK is shitty, I'd recommend AS&M 54mm TB for a stock intake. Anything 58mm you'll have to port match the opening of the intake manifold to the throttle body.
Originally Posted by MA1384
would it be worth it to buy a tb, im only ganna have whats in my sig, plus lt4hot-cam kit, and lt4 intake manifold (only cause the looks is worth the $230 haha), it will still run stock heads.
well since the stock tb should be good to feed up to a 400 hp motor(so ive heard) why not just port ur tb ur self a lil to get a lil reaction and save ur money and spend it somwheres else...this seems like the best thing to do if u keep thinking "should I" or "will it help".
Thread Starter
On The Tree
Joined: Oct 2003
Posts: 195
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From: Upstate NY
Originally Posted by dhdenney
What Snow Dog said, probably not worth it if you're not doing much. BTW, I thought the raised runner design of the LT4 manifold will cause improper port alignment on LT1 heads?
I didnt think of that, the website says it needs to be port matched when used with LT1 heads. Anyone know what that involves?
Joined: May 2004
Posts: 1,593
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From: Halfway back on the Highway to Hell...again!
First to use any LT4 component with and LT1 piece, the Lt1 piece will have to be machined.
2nd - BBK is a good product and one reason every company offers a warranty with any product is "to err is human" things slip through the cracks, I've had by BBK 52mm since 95, installe hot cam and provides more than enough air. 58's should be used for forced induction. If all the n/a 58's on here would run a 52, some would see no change, some would see a loss, and some would see a gain in hp, 90% of dyno runs I had seen on a n/a lt1 the 52 made more hp with a wider powerband. nothing huge, but a few hp diff.
2nd - BBK is a good product and one reason every company offers a warranty with any product is "to err is human" things slip through the cracks, I've had by BBK 52mm since 95, installe hot cam and provides more than enough air. 58's should be used for forced induction. If all the n/a 58's on here would run a 52, some would see no change, some would see a loss, and some would see a gain in hp, 90% of dyno runs I had seen on a n/a lt1 the 52 made more hp with a wider powerband. nothing huge, but a few hp diff.