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Too much cam for 5.3??

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Old 09-08-2014, 01:28 PM
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Default Too much cam for 5.3??

I have an L33 5.3 with a 750 holley dp carb, and a vic jr, pac dual valve springs and a custom cam from bullet cams...specs..230/234 612/612 108+3, t56 with 3.73's in the back. Motor is currently apart and getting freshened up. Just looking for some opinions on if this cam will be a good suit or if I should go with something different? This is my first build btw just looking for some incite. Thanks!
Old 09-09-2014, 11:28 PM
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Not exact but close...read

https://ls1tech.com/forums/carburete...rous-guys.html
Old 09-10-2014, 04:01 AM
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Do you know the advertised specs for the Bullet cam? Either way it looks good and will be about right for a manual trans, with 16 degrees overlap it will sound the part also.

Definitely DO NOT recommend anything like the above Isky cam that Blue Knight has linked. As much as I respect Isky Cams, that particular cam is way too aggressive off the seat for a typical street motor, and will be a valve-train destroyer soon enough and most likely a pig to drive with a stick shift.
Old 09-10-2014, 06:37 AM
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Originally Posted by VLS1
Do you know the advertised specs for the Bullet cam? Either way it looks good and will be about right for a manual trans, with 16 degrees overlap it will sound the part also.

Definitely DO NOT recommend anything like the above Isky cam that Blue Knight has linked. As much as I respect Isky Cams, that particular cam is way too aggressive off the seat for a typical street motor, and will be a valve-train destroyer soon enough and most likely a pig to drive with a stick shift.
To be fair i didn't recommend it to him either..... just wanted to show an idea on how something like that sat on a 5.3. For reference only.
Old 09-10-2014, 07:17 AM
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Originally Posted by Blue Knight
To be fair i didn't recommend it to him either..... just wanted to show an idea on how something like that sat on a 5.3. For reference only.
Yeah im following that thread awaiting more results with the bigger carb! definitely thought you blew it up yesterday after reading disaster struck. With you only running .030 valve clearance and its still being together makes me feel better too. I hope to see some number like that at least! or close.
Old 09-10-2014, 07:22 AM
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Originally Posted by VLS1
Do you know the advertised specs for the Bullet cam? Either way it looks good and will be about right for a manual trans, with 16 degrees overlap it will sound the part also.

Definitely DO NOT recommend anything like the above Isky cam that Blue Knight has linked. As much as I respect Isky Cams, that particular cam is way too aggressive off the seat for a typical street motor, and will be a valve-train destroyer soon enough and most likely a pig to drive with a stick shift.
I don't remember the cam specs exactly no. The cam/card is with the block and heads at the machine shop. I didn't know if they would want it to test fit it after new cam bearings are installed so I brought it with. I wish I had it so I could give some more info
Old 09-10-2014, 03:14 PM
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You won't even need to guess what took blue knights motor out if it blows. It doesn't have enough compression to blow up any other way. I'd like to see that thing with milled 243/799's, better springs, pushrods and a flycut. He'll hit 500 + for sure.


I put together a 5.3, 5 speed S10 with a TR224 588 lift that IMHO had a great torque curve and good hp. Really nice street manners. I could see a 230 working with some lope and moving the band up a bit.

Last edited by The stunningman; 09-10-2014 at 03:29 PM.
Old 09-10-2014, 03:17 PM
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My 5.3 has a 230/237 cam, .540 lift. Runs great.
Old 09-11-2014, 07:27 AM
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Originally Posted by The stunningman
You won't even need to guess what took blue knights motor out if it blows. It doesn't have enough compression to blow up any other way. I'd like to see that thing with milled 243/799's, better springs, pushrods and a flycut. He'll hit 500 + for sure.


I put together a 5.3, 5 speed S10 with a TR224 588 lift that IMHO had a great torque curve and good hp. Really nice street manners. I could see a 230 working with some lope and moving the band up a bit.
So with my ported 799's and a good valve job I should be looking at around the same number as blue knights posted already??
Old 09-11-2014, 08:36 AM
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Originally Posted by 5FOX3
I have an L33 5.3 with a 750 holley dp carb, and a vic jr, pac dual valve springs and a custom cam from bullet cams...specs..230/234 612/612 108+3, t56 with 3.73's in the back. Motor is currently apart and getting freshened up. Just looking for some opinions on if this cam will be a good suit or if I should go with something different? This is my first build btw just looking for some incite. Thanks!
I like everything, but if it were mine, I would have some 4.11-4.30 gears in there depending on how tall of a tire. I like that cam that bullet spec'd for you. Your intake piston to valve will be pretty tight, but many guys push it further than that. I would not mill your heads with that cam unless you intend to fly-cut.
Old 09-11-2014, 08:48 AM
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Take a good look at my cam, i have .030 valve clearance in mine. On the other side, I only have around $800 into my block.
Old 09-11-2014, 09:07 AM
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Originally Posted by speedtigger
I like everything, but if it were mine, I would have some 4.11-4.30 gears in there depending on how tall of a tire. I like that cam that bullet spec'd for you. Your intake piston to valve will be pretty tight, but many guys push it further than that. I would not mill your heads with that cam unless you intend to fly-cut.
I checked the heads and deck of the block and they were in spec, didn't vary more then .002 across the span of either so heads are not getting milled nor is the block getting decked. Pistons already sit flush with the deck at tdc. I have a guy bringing some 27x10.5x15 hoosier quick time pro tires to me when hes back in the cities. Rear end will get up graded once she blows but if a deeper gear would benefit me I can definitely make that happen and see how it works out.
Old 09-11-2014, 09:11 AM
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Originally Posted by Blue Knight
Take a good look at my cam, i have .030 valve clearance in mine. On the other side, I only have around $800 into my block.
yeah I checked that out, hopefully after my heads being ported and port match the intake (vic jr) itll make numbers close to yours.
Old 09-11-2014, 09:23 AM
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I bet you make notably more power.
Old 09-11-2014, 09:42 AM
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Originally Posted by speedtigger
I bet you make notably more power.
More then likely. The dyno guy says he always takes compression over flow. So after he ports his heads they should flow better that stock 799, 243, or 317 heads of course with a compression bump. Or he can save the porting costs and find a set of 799's cheap.
Old 09-11-2014, 10:36 AM
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It would be cool to make more for sure, but theres only one way to find out. The only reason im doing this is to beat my dad down the 1/4 ha I think ill have that no problem...well I hope
Old 09-11-2014, 10:46 AM
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What's he got?
Old 09-11-2014, 11:13 AM
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Originally Posted by speedtigger
What's he got?
Fully restored 68 Camaro with a 1971 gm ls7 crate motor, its like a 500+fwp 454, 12.5:1 cr, with the good aluminum heads off his old 427, new 4spd rock crusher trans, 4.10's out back, 12 bolt, eaton posi, c clip eliminators, hooker headers, only problem is it dosent hook at all, all stock suspension wise. But that's what he wanted when he restored was an actual stock Camaro with a 427 then we put the other motor in a couple years ago. Made 408whp and I think 430lb/ft torque on car crafts dyno last year.

Fastest time so far was a 12.09 at 119, that was with 3.55 rear gear. Last fall at muscle car shoot out I ran a 12.14 at like 112 coasting through the traps because I had a good distance on the next guy. Weird thing was he put 4.88's in the back for an unknown reason. Was only running 12.70's, no more gear. Next day it was like 31 degrees colder at 60 degrees outside and that's when I went 12.14 coasting. Broke out by half a sec. Had a dial time of 12.65.

So if I squeeze a high 11 id be happy for now.
Old 09-13-2014, 11:59 PM
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Ive seen/heard an ms3 in a 5.3. Definetley what im going to ddo if i end up getting one sometime down the road. Thing sounded nasty!
Old 09-15-2014, 11:56 AM
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My 5.3 has a thunder racing raptr cam that I just got running a few weeks ago. Just ran at our local 1/8 mile and best pass was 7.58 at almost 93 mph. I think it will get down to 720 something after tuning and better launch. Car is a 82 mustang notch weighing somewhere around 3000.
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