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Edelbrock or stock heads?
#1
Other than weight savings is there a big benefit for going with edelbrock aluminum heads over refurbishing the stock ones?  If so what are they?  I plan on running a large roller cam I got from a forum member which will require adjustable valve train so there will be an added expense of drilling the stock heads for screw in studs and guide plates.

So what should I do? Big Grin

Thanks!
Wade
1972 Mach 1 351 cj 4speed
"We confide in our strength, without boasting of it; we respect that of others, without fearing it."--Thomas Jefferson

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#2
Go with aluminum heads.....theoretically, you can run more compression with aluminum and the Edelbrock heads should flow better than refurbished factory heads.
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#3
Depends on what factory head flows we're talking about. 2V maybe, 4V no.

This debate has been going on for years, about stock versus modified stock, versus a variety of aftermarket heads. Verbal blows have been exchanged on the 351C.net forum over it.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#4
https://www.summitracing.com/parts/tfs-5.../overview/
These are a nice cylinder head that make some power but a step under CHI and AFD heads but better than edelbrocks.
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#5
(08-19-2018, 09:20 AM)Don C Wrote: Depends on what factory head flows we're talking about. 2V maybe, 4V no.

This debate has been going on for years, about stock versus modified stock, versus a variety of aftermarket heads. Verbal blows have been exchanged on the 351C Forum over it.
My stocks are 4v heads.

(08-19-2018, 09:23 AM)Canted 393 Wrote: https://www.summitracing.com/parts/tfs-5.../overview/
These are a nice cylinder head that make some power but a step under CHI and AFR heads but better than edelbrocks.

These are better heads and almost $300 cheaper per head?

Thanks!
Wade
1972 Mach 1 351 cj 4speed
"We confide in our strength, without boasting of it; we respect that of others, without fearing it."--Thomas Jefferson

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#6
I have my stock heads in for service, as after 12 years of the car sitting in storage, I sprung a head gasket leak. Took the heads in to have them checked out, ugh. Needs new guides, four valves being replaced and milled.

Bottom line is it will be a few more weeks and it's a touch over $1,000
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#7
(08-19-2018, 10:05 AM)Ryunker Wrote: I have my stock heads in for service, as after 12 years of the car sitting in storage, I sprung a head gasket leak. Took the heads in to have them checked out, ugh. Needs new guides, four valves being replaced and milled.

Bottom line is it will be a few more weeks and it's a touch over $1,000

Then mine will be closer to $1500 once I factor in new springs, retainers, studs, guide plates and I would still have the heavy valves.  Those Trick Flows are looking more like the better option.

Thanks!
Wade
1972 Mach 1 351 cj 4speed
"We confide in our strength, without boasting of it; we respect that of others, without fearing it."--Thomas Jefferson

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#8
Wade,
I have the edelbrock heads on a 351c. I am very satisfied with how they perform. The only issue I had with them was after I ate a camshaft after 20K on the motor, I figured I would have the heads checked out while the motor was apart. My engine guy found three tight guides. I spoke with a few other people and found that is common, even right out of the box. Keep in mind my heads are about 10 years old, I am sure they corrected the problem, I hope......
Thanks, Jay
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#9
What stock heads do you have?

Got to think of this like baking a cake. You can buy the absolute best ingredients, but if you don’t get the ratios right the cake will fail.

Be sure to buy a combo that will net you a good dynamic compression ratio. Heads/camshaft/pistons/gasket are all parts that need to match up to make you a fine cake.
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#10
(08-19-2018, 11:31 AM)Bentworker Wrote: What stock heads do you have?

Got to think of this like baking a cake.  You can buy the absolute best ingredients, but if you don’t get the ratios right the cake will fail.

Be sure to buy a combo that will net you a good dynamic compression ratio.  Heads/camshaft/pistons/gasket are all parts that need to match up to make you a fine cake.

My current heads are the stock 4v's.  I already have the cam so I am going to build the motor around it.  The motor was rebuilt about 5 years ago but probably has less than 200 miles on it.  I won't know what pistons are in it till I open it up.  If stock pistons can I use them or do they need to be replaced?

Here is the cam.   https://www.summitracing.com/parts/cca-3.../make/ford

Thanks!
Wade
1972 Mach 1 351 cj 4speed
"We confide in our strength, without boasting of it; we respect that of others, without fearing it."--Thomas Jefferson

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