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Old Feb 19, 2009 | 07:51 PM
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Default sb engine rebuild

I rebuilt the engine of my '69 350 nine years ago but want to check it out again and would like to know if these parts are compatible -

Edelbrock Performer Intake mainifold EDE 2101
Edelbrock Performer Cam EDE 7102 and lifters
Holley 600
+30 Overbores

Before I put it back together again, could anyone tell me if these parts are suitable? I could still put back the standard cam and original manifold.

Regards,
Barry.
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Old Feb 19, 2009 | 11:16 PM
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First of all you should ask yourself what you want to do with your car, what power you want from your engine and then how much money you want to spend.

All SB 350 parts can fit a SB 350 but not all will work for your needs.

If you have a stock 350 hood I think that is the largest manifold that Edelbrock recomends that will clear is the performer. I put an air gap in my 69 vert but my air cleaner rubs so I am going to change the hood. Once I do that I am going with a bigger intake.

As for the cam you picked it is matched for the Performer RPM manifold which might be too tall for your engine bay.
Also this cam is rated for a RPM RANGE of 1500-6500
Duration at 0.006" Lift: Intake: 308° Exhaust: 318°
Duration at 0.050" Lift: Intake: 234° Exhaust: 244°
Lift at Cam: Intake: 0.325" Exhaust: 0.340"
Lift at Valve: Intake: 0.488" Exhaust: 0.510"
Timing at 0.050" lift: Open Close
Intake: 10° BTDC 44° ABDC
Exhaust: 59° BBDC 5° ATDC
Centerlines: Lobe Separation - 112° Intake Centerline - 107°

Like I said, tell us what you want from your engine and what you want to spend and we can help you spend that money.
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Old Feb 20, 2009 | 01:05 AM
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Those are some pretty high duration numbers, better suited for a high compression motor looking for high RPM HP.
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Old Feb 20, 2009 | 01:16 AM
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there are some pretty bright people on this forum but i still think you'd be much better off contacting either holley or edlebrock with what you are looking for and what they recommend.
even so, you still haven't really provided enough info. are the heads stock? what's the valve sizes? you already said .030 over, but are they flat top, dome or dished pistons? any idea what the SCR is? that would be a start.
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Old Feb 20, 2009 | 12:48 PM
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Default sb engine rebuild reply

Tristan - thanks for your reply. I'd be happy with good street performance using the parts I bought as long as they were compatible with each other. I bought the Performer RPM manifold but as you say it was too big to fit, so I changed it for the Performer. Should I now put back the stock cam, and if so will it go with the RPM lifters? I'm using original valves and heads (now unleaded) and new flat pistons +30.
I changed the Rochester for the Holley 600. I might have adjusted the valve clearances incorrectly when tightening the pushrods. I feel the car has never run well and it takes 15 minutes before it idles properly.
The fuel consumption is only about 10 mpg, and in the UK that's very expensive! I've got a mechanic friend coming round on Sunday so I'll give him the tech details which you sent. My main concern is whether to put back the old cam, but if you have any other suggestions I'd be glad to hear them.
Regards,
Barry.
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Old Feb 20, 2009 | 01:03 PM
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Default SB engine rebuild reply

Hi Clutchdust, thanks for your reply. I tried contacting Edelbrock and some others but never got through to a human being. More info on the engine is - orig heads (unleaded) and valves, new flat +30 pistons, Performer manifold, Holley 600. My main concern is whether I should put back the original cam, and even stock manifold, and would the cam go with the uprated cam lifters?
Thanks Barry
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Old Feb 20, 2009 | 06:35 PM
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Tristan - thanks for your reply. I'd be happy with good street performance using the parts I bought as long as they were compatible with each other. I bought the Performer RPM manifold but as you say it was too big to fit, so I changed it for the Performer. Should I now put back the stock cam, and if so will it go with the RPM lifters? I'm using original valves and heads (now unleaded) and new flat pistons +30.
I changed the Rochester for the Holley 600. I might have adjusted the valve clearances incorrectly when tightening the pushrods. I feel the car has never run well and it takes 15 minutes before it idles properly.
The fuel consumption is only about 10 mpg, and in the UK that's very expensive! I've got a mechanic friend coming round on Sunday so I'll give him the tech details which you sent. My main concern is whether to put back the old cam, but if you have any other suggestions I'd be glad to hear them.
Regards,
Barry
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Old Feb 20, 2009 | 06:36 PM
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Hi Clutchdust, thanks for your reply. I tried contacting Edelbrock and some others but never got through to a human being. More info on the engine is - orig heads (unleaded) and valves, new flat +30 pistons, Performer manifold, Holley 600. My main concern is whether I should put back the original cam, and even stock manifold, and would the cam go with the uprated cam lifters?
Thanks Barry
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Old Feb 20, 2009 | 07:58 PM
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Edelbrock's power packages aren't matched very well. I am building a 406 with 225cc runner heads and the cam I'll run is 230-238, one size bigger would cause me problems with brakes. If you call a cam company, you might or might not get good advice. Stick with the Holley carb, it's a better piece than the Rochester. If you search here and can't find a consensus, head over to www.teamchevelle.com, that's the best gathering of street engine gurus and builders on the net.
Good luck!
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Old Feb 21, 2009 | 01:03 AM
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Originally Posted by chevyfiftynine
Tristan - thanks for your reply. I'd be happy with good street performance using the parts I bought as long as they were compatible with each other. I bought the Performer RPM manifold but as you say it was too big to fit, so I changed it for the Performer. Should I now put back the stock cam, and if so will it go with the RPM lifters? I'm using original valves and heads (now unleaded) and new flat pistons +30.
I changed the Rochester for the Holley 600. I might have adjusted the valve clearances incorrectly when tightening the pushrods. I feel the car has never run well and it takes 15 minutes before it idles properly.
The fuel consumption is only about 10 mpg, and in the UK that's very expensive! I've got a mechanic friend coming round on Sunday so I'll give him the tech details which you sent. My main concern is whether to put back the old cam, but if you have any other suggestions I'd be glad to hear them.
Regards,
Barry
That is a lumpy cam for a 350 as Scott said. Here in Canada you would not pass the Air Care to insure the car. That being said my numbers are: RPM Range: 2500-7000 Advertised Duration: 290/300 Duration @ .050: 235/245Lift: .490/.510Lobe Center: 112c
But since I have a 383 it is lumpy but can be daily driven.

Like I said I have a performer air gap in my 69 and it just clears now. I tried an RPM Air Gap but it really rubbed. To find out where the air cleaner rubbed I put play doh all around my air cleaner, closed the hood, then started the engine and reved it up. When I stopped the engine and lifted the hood it showed where the air cleaner rubbed. It rubbed on the front right and when I reved it up it rubbed more to the front. So to fix this I did not use any gaskets from the carb to the base plate and then I lowered the front of the baseplate 1/3 inch more (bent it). I put it all back together and there is no rubbing now.

I forgot to ask if you have an auto or manual trans? I have a turbo 400 and run a B&M Holeshot 2400 which works great at the track and on the street, but if you also have an auto your stock stall conv will be to low. I get 8MPG on average as I have a heavy foot and gas was up to $1.55/litre Cdn for 91 octane

In my original stock 350 with all stock except the cam, I run a Comp Cam Xtreme Energy™ XE268H and it is nice. It sits in my brothers garage right now as I have no space for it.

Good luck!
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Old Feb 25, 2009 | 03:32 PM
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Default SB engine rebuild reply

Originally Posted by L88Plus
Edelbrock's power packages aren't matched very well. I am building a 406 with 225cc runner heads and the cam I'll run is 230-238, one size bigger would cause me problems with brakes. If you call a cam company, you might or might not get good advice. Stick with the Holley carb, it's a better piece than the Rochester. If you search here and can't find a consensus, head over to www.teamchevelle.com, that's the best gathering of street engine gurus and builders on the net.
Good luck!
Thanks for your help, L88plus - I'll be putting it back together this weekend! Chevyfiftynine
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Old Feb 25, 2009 | 03:34 PM
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Default SB engine rebuild reply

Originally Posted by Scott Marzahl
Those are some pretty high duration numbers, better suited for a high compression motor looking for high RPM HP.
Thanks for your help Scott - very much appreciated! Chevyfiftynine
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