Good Prospect or Not?
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Senior User
Joined: Apr 2003
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From: North Carolina, Wilmingto
Good Prospect or Not?
Ok, My 351M needs a rebuild, so I got to looking and found this engine. What I want to know is it worth a grand or what? Thanks in Advance
400M +.30-Honed
Comp Cams 268H with 218/218 Durations with .500 lift
Edelbrock Performer Manifold
Holley 750
Heads :valves have a competition three angle valve job. All new valves, seals, retainers, guides.
Federal Mogul Flat top pistons
New HV water pump; New HV oil pump; New Accel distributor; and wires; SS engine bolt kit; timing cover; engine gasket kit
Also comes with a power steering pump and brakets and a few other misc things.
Whatcha think?
400M +.30-Honed
Comp Cams 268H with 218/218 Durations with .500 lift
Edelbrock Performer Manifold
Holley 750
Heads :valves have a competition three angle valve job. All new valves, seals, retainers, guides.
Federal Mogul Flat top pistons
New HV water pump; New HV oil pump; New Accel distributor; and wires; SS engine bolt kit; timing cover; engine gasket kit
Also comes with a power steering pump and brakets and a few other misc things.
Whatcha think?
Posting Guru
Joined: Aug 2000
Posts: 1,127
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From: (near) Denver USA
Good Prospect or Not?
Depends on how many miles are on it and how it was used for those miles, and who built it and how good a job they did. It's a crap shoot unless you personally know the seller, and you know exactly what they did with it.
As far as the specs go, a few things raise my eyebrows:
Wrong cam. Single-pattern cams do not perform very well in these engines, unless you run solid lifters and at very high rpm. (And that cam isn't even a good high-rpm cam for an M-block 400 either.)
Carb too big. You'll have weak throttle response, and it'll be difficult to tune for street driving. A 600-650 cfm carb will run a lot better at speeds below 5K rpm.
Pistons? No such thing as Federal Mogul flat tops for the 400.
Unless you know the builder personally and you trust them, who knows what's really inside there?
As far as the specs go, a few things raise my eyebrows:
Wrong cam. Single-pattern cams do not perform very well in these engines, unless you run solid lifters and at very high rpm. (And that cam isn't even a good high-rpm cam for an M-block 400 either.)
Carb too big. You'll have weak throttle response, and it'll be difficult to tune for street driving. A 600-650 cfm carb will run a lot better at speeds below 5K rpm.
Pistons? No such thing as Federal Mogul flat tops for the 400.
Unless you know the builder personally and you trust them, who knows what's really inside there?
Thread Starter
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Senior User
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From: North Carolina, Wilmingto
Good Prospect or Not?
Bubba, (or anybody)
I am trying to expand my knowledge on cams and such. What is the major differance between a single plane cam and a dual plane cam. Will the cam work? I don't need anything hi-po. jsut get it moving again.
TIA
Nick
I am trying to expand my knowledge on cams and such. What is the major differance between a single plane cam and a dual plane cam. Will the cam work? I don't need anything hi-po. jsut get it moving again.
TIA
Nick
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Good Prospect or Not?
Yes.
Is it optimum?
Probably not.
Excellent online directory.
http://www.performancemarket.com/
http://www.performancemarket.com/camshaft.htm
Look at some of the cam sites. Comp Cams, Isky and some others have tech pages and tutorials that explains cam terminology fairly well.
Is it optimum?
Probably not.
Excellent online directory.
http://www.performancemarket.com/
http://www.performancemarket.com/camshaft.htm
Look at some of the cam sites. Comp Cams, Isky and some others have tech pages and tutorials that explains cam terminology fairly well.
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Senior User
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From: North Carolina, Wilmingto
Good Prospect or Not?
Well I asked him for a part number on the pistons and this is what he provided. I can't seem to verify that but here it is H519P30. but thanks for the inf on the cams
nick
nick
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From: PacNW
Good Prospect or Not?
The only listing I could find for H519Pxx was a Speed Pro (made by Fed Mogul) piston which is for the Ford 300 CID 6 cyl.
It actually looks like an interesting piston with the higher comp. distance (1.767") and the same size pin however I would be concerned about pin offset.
It actually looks like an interesting piston with the higher comp. distance (1.767") and the same size pin however I would be concerned about pin offset.
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Good Prospect or Not?
Funny thing, I just saw this today in the ACL piston catalog. It shows a 4.00 bore, 1.74CH with a .975 pin, std, .020, .030, .040, .060. It just a cast piston, no specs for the dish size but it appears to be a fairly deep "D" shape which should allow for adding a canted valve relief and plenty of material to shave off some compression height. A 300 is just like a 400 missing 2 cylinders. 4' bore & 3.98 stroke.
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Good Prospect or Not?
I thin' so Quickstraw, but I haven't seen any numbers to confirm it.
ACL Catalog, 15meg
http://www.acl.com.au/web/aclwebsite...56967000e22bb/$FILE/PP03.pdf
ACL Catalog, 15meg
http://www.acl.com.au/web/aclwebsite...56967000e22bb/$FILE/PP03.pdf
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