Kind of a waste to put a stock cam in anything. There are endless options for better cams out there.
5.7 350 Camshaft
I’ve read people running a LT1 cam in there 5.7’s so I looked and is this the cam they are talking about?
paceperformance.com
Thank You
Glenn
12629512 - Lt1/L86 Replacement Stock Camshaft GM (General Motors)
Pace Performance offers the best pricing on products offered by GM (General Motors). Including 12629512 - LT1/L86 Replacement Stock Camshaft.
paceperformance.com
Thank You
Glenn
1 - 20 of 30 Posts
Well I’ve been looking and reading and I saw this cam and thought I would ask about it.
If you are looking for a little extra HP YES the Lt1 or even the Lt4 330 hp cam
You can even run the GM hott cam. My buddy did the GM hott cam in his 97 Tahoe when I did mine in my Blazer and what a difference! I know it would have been optimized with tuning but nonetheless it was a great swap
You can even run the GM hott cam. My buddy did the GM hott cam in his 97 Tahoe when I did mine in my Blazer and what a difference! I know it would have been optimized with tuning but nonetheless it was a great swap
I have never heard of the hot cam… I’m doing carborated so which cam you think would be best? LT1 or Hot Cam?
To find a good cam, call COMPCAMS and tell them what you want to do. They will give you advice..
I have heard that a couple times now.
LT4 hot cam is solid, good improvement without giving up to much and works with most stock setups. I would go that route.
X2
As mentioned above, makes 330HP with decent heads. If it's an old TBI truck motor you'll need to put on Vortec or at least TPI heads for those numbers. The Corvette ones were aluminum. It's more the heads that made the LT1 and LT4 hotter engines, but they won't work on any other SBC because of the reverse waterflow in the LT1/4 blocks. Not talking about water pumps, the whole engine was reverse water flow. While still using the basic SBC rotating assembly and roller lifter valvetrain.
If your engine has a flat tappet cam these cams won't work unless the block has the proper machining for a roller cam and lifters. The distributor gear must also be for a roller camshaft or the cam will eat a non melonized gear quickly. Those cams do have a fuel pump lobe but you'll need a block that is roller ready and drilled for a fuel pump. I believe some 638 blocks have both. Some were even 4 bolt. Great base for a stroker 383 or 406.
If it's not roller ready call Summit and ask what flat tappet cam will work best for your intended use.
As mentioned above, makes 330HP with decent heads. If it's an old TBI truck motor you'll need to put on Vortec or at least TPI heads for those numbers. The Corvette ones were aluminum. It's more the heads that made the LT1 and LT4 hotter engines, but they won't work on any other SBC because of the reverse waterflow in the LT1/4 blocks. Not talking about water pumps, the whole engine was reverse water flow. While still using the basic SBC rotating assembly and roller lifter valvetrain.
If your engine has a flat tappet cam these cams won't work unless the block has the proper machining for a roller cam and lifters. The distributor gear must also be for a roller camshaft or the cam will eat a non melonized gear quickly. Those cams do have a fuel pump lobe but you'll need a block that is roller ready and drilled for a fuel pump. I believe some 638 blocks have both. Some were even 4 bolt. Great base for a stroker 383 or 406.
If it's not roller ready call Summit and ask what flat tappet cam will work best for your intended use.
How much fizz are you looking for.... 😂I have never heard of the hot cam… I’m doing carbonated so which cam you think would be best? LT1 or Hot Cam?
Oh my god… I love auto correct!
I believe I have a roller cam currently…X2
As mentioned above, makes 330HP with decent heads. If it's an old TBI truck motor you'll need to put on Vortec or at least TPI heads for those numbers. The Corvette ones were aluminum. It's more the heads that made the LT1 and LT4 hotter engines, but they won't work on any other SBC because of the reverse waterflow in the LT1/4 blocks. Not talking about water pumps, the whole engine was reverse water flow. While still using the basic SBC rotating assembly and roller lifter valvetrain.
If your engine has a flat tappet cam these cams won't work unless the block has the proper machining for a roller cam and lifters. The distributor gear must also be for a roller camshaft or the cam will eat a non melonized gear quickly. Those cams do have a fuel pump lobe but you'll need a block that is roller ready and drilled for a fuel pump. I believe some 638 blocks have both. Some were even 4 bolt. Great base for a stroker 383 or 406.
If it's not roller ready call Summit and ask what flat tappet cam will work best for your intended use.
I built a couple with LT4 cams, definite improvement over stock but not radical.
Just keep in mind that computers don't like big cams.
Just keep in mind that computers don't like big cams.
I’m running a 91 and carburetedI built a couple with LT4 cams, definite improvement over stock but not radical.
Just keep in mind that computers don't like big cams.
In 1991, most 350 engines out of cars were roller cam engines. Truck engines were all flat tappet cams, but a lot of the blocks had the valley pedestals drilled and tapped for the roller lifter retainer and the front of the block machined and tapped for the roller cam retainer plate. So in most cases, not all, it is easy to upgrade to the lt4 cam with the needed lifters. A lot of those blocks, tho, did not have the fuel pump area drilled for a mechanical pump. So an electric pump and pressure regulator is needed. I believe GM did it that way so the bare blocks could be used to build any 350 in the factory and since nothing had mechanical pumps they skipped that machining step.
Your carb obviously isn't original.
Your carb obviously isn't original.
Ok I think I’ll be better off getting a mild cam then lol.In 1991, most 350 engines out of cars were roller cam engines. Truck engines were all flat tappet cams, but a lot of the blocks had the valley pedestals drilled and tapped for the roller lifter retainer and the front of the block machined and tapped for the roller cam retainer plate. So in most cases, not all, it is easy to upgrade to the lt4 cam with the needed lifters. A lot of those blocks, tho, did not have the fuel pump area drilled for a mechanical pump. So an electric pump and pressure regulator is needed. I believe GM did it that way so the bare blocks could be used to build any 350 in the factory and since nothing had mechanical pumps they skipped that machining step.
Your carb obviously isn't original.
Any suggestions on cam for street use? Weekend warrior, 350 vortec with dual plane intake, 650cfm carb and Sanderson shorty headers?
Thanks
Glenn
I’d say so lolYes, that cam has skyrocketed in price in recent years, maybe due to popularity idk. Here's a screenshot of a summit invoice from March 2015 on my original 383 build, never used the cam but look at the price new $219. $547 is highway robbery. View attachment 368903
Sp357 camshaftOk I think I’ll be better off getting a mild cam then lol.
Any suggestions on cam for street use? Weekend warrior, 350 vortec with dual plane intake, 650cfm carb and Sanderson shorty headers?
Thanks
Glenn
1 - 20 of 30 Posts
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