building a 351
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building a 351
thanks for all the help in identifing what year block i have. well ita a 94 351. i would like to get around 400-425 horses out of it and still be able to drive it on the weekends without running 6000 rpm at 60 mph and still be able to run pump gas in it. so im ask the gods of the engines (thats all of you
for your opions on this. the only thing i dont want to do is stroke it i would like to go .030 over just to clean up the cyclinders so if anyone can give me ideas on cam carb intake heads the works i would greatly appreciated also im working on a budget of about $5000 for the engine and trans. right now i have the c6 in it but can get an a40d for nothing just need to go through it and make sure its good. thanks in advanced
for your opions on this. the only thing i dont want to do is stroke it i would like to go .030 over just to clean up the cyclinders so if anyone can give me ideas on cam carb intake heads the works i would greatly appreciated also im working on a budget of about $5000 for the engine and trans. right now i have the c6 in it but can get an a40d for nothing just need to go through it and make sure its good. thanks in advanced
Senior User
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building a 351
I think the limit on overbore is .040 for a 351 so don't take more than you need. For $5K you could get Forged pistons, H-beam rods, RV cam, Gt-40 iron heads & efi intake, and a belt driven supercharger for a street truck. If your only interested in HP and not drivability you can get a wilder head and cam combo. Save money for tires!
Elder User
Joined: Jul 2002
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From: Illinois
building a 351
If it were me I'd freshen up the stock crank and rods with all ARP bolts, put in forged pistons, a Comp XE Cam, Edelbrock Performer RPM heads and Intake, and a 750 cfm carb. That should get u and easy 400+ horse 358w.
Elder User
Joined: Mar 2003
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From: Willamette Valley Oregon
building a 351
<cr>
Don't forget to figure in your exhaust, tire size and rear end ratio. With that and the other info you have, contact a cam company and ask for their advise. They will be able direct you in the purchase of the correct cam. Not that I'm recomending them but Crane provided me with great support when I purchased mine for my 351W.
As you well know, you can't have your cake and eat it too. You can't get a high lift, long duration cam and expect to drive it around in town at 1500 r.p.m. Get some expert advise when making that selection.
Don't forget to figure in your exhaust, tire size and rear end ratio. With that and the other info you have, contact a cam company and ask for their advise. They will be able direct you in the purchase of the correct cam. Not that I'm recomending them but Crane provided me with great support when I purchased mine for my 351W.
As you well know, you can't have your cake and eat it too. You can't get a high lift, long duration cam and expect to drive it around in town at 1500 r.p.m. Get some expert advise when making that selection.
Postmaster
Joined: Jun 2001
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building a 351
Aekisu,
What engine mods do you have and what cam did they suggest? I have my eye on one of those powermax truck cams, and was wondering if maybe that is what they suggested. Either way how does your truck perform?
What engine mods do you have and what cam did they suggest? I have my eye on one of those powermax truck cams, and was wondering if maybe that is what they suggested. Either way how does your truck perform?
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Elder User
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From: Dallas, Texas
building a 351
Originally posted by Aekisu
You can't get a high lift, long duration cam and expect to drive it around in town at 1500 r.p.m.
You can't get a high lift, long duration cam and expect to drive it around in town at 1500 r.p.m.
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Elder User
Joined: Jun 2002
Posts: 678
Likes: 3
From: Dallas, Texas
building a 351
Originally posted by E150X
I think the limit on overbore is .040 for a 351 so don't take more than you need. For $5K you could get Forged pistons, H-beam rods, RV cam, Gt-40 iron heads & efi intake, and a belt driven supercharger for a street truck. If your only interested in HP and not drivability you can get a wilder head and cam combo. Save money for tires!
I think the limit on overbore is .040 for a 351 so don't take more than you need. For $5K you could get Forged pistons, H-beam rods, RV cam, Gt-40 iron heads & efi intake, and a belt driven supercharger for a street truck. If your only interested in HP and not drivability you can get a wilder head and cam combo. Save money for tires!
A fresh stock bottom end 30 over 351 with a good head, cam intake combo will support your goal well.
My personal tastes would put together a hyd roller with around 500+ lift, dur@50 around 220 and a 114 lsa. Use a set of AFR 185's and a weiand stealth or edel perf rpm and you shouldn't have any problems meeting your goals.
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Elder User
Joined: Mar 2003
Posts: 999
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From: Willamette Valley Oregon
building a 351
Originally posted by Jimbo302
I do. In my Mustang.
I do. In my Mustang.
My first car was a 1956 Ford with a 272. The car was about 9 years old at the time. That might give you an idea where I'm coming from. I'm an old guy. 99.9% of the time, I just drive around looking cool
I couldn't care less, whether or not the guy next to me thinks I have a hot car of not because I know I'm hot. The chicks dig me and the guys know best not to be messing with me. The wife knows she's one lucky gal to have a hunk like me. 
If you have a high lift, long duration cam where the power curve starts kicking in around 3500 r.p.m., the thing is a slug at low r.p.m. There is no getting around it. The cam companies have spent buckets of money and man years of research time, to produce a cam that is used for a specific application. Now, I'm not arguing that a lump, lump cam doesn't sound cool because it does. I'm just saying, investigate. The cam companies know their business.
Elder User
Joined: Mar 2003
Posts: 999
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From: Willamette Valley Oregon
building a 351
Originally posted by jwtaylor
Aekisu,
What engine mods do you have and what cam did they suggest? I have my eye on one of those powermax truck cams, and was wondering if maybe that is what they suggested. Either way how does your truck perform?
Aekisu,
What engine mods do you have and what cam did they suggest? I have my eye on one of those powermax truck cams, and was wondering if maybe that is what they suggested. Either way how does your truck perform?
It was about 5 years ago. For the life of me, I can't remember the name of the Crane cam. Whatever it is, it gave me a horsepower boost and a hunk of low end torque. I'm still driving the rig.
Go to the Crane site. There's lot to read but don't get lost in all the specs. Send them some email and get thir advise.
Posting Guru
Joined: Jul 2003
Posts: 1,486
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From: Independence, MO
building a 351
Listen for the cost of a blower and or nitrous you can build a kick *** motor.,
351W block: .030. have the block o decked and line bored.
Stock rods W/ARP rod bolts,
Hyperutectic piston, moly rings, Double roller timming set,
Oil punmp, if your planning to stay under 6Krpm stock is fine, if your go turn the motor up alot, then go with HIGH VOL. MELLING pump.
Heads: AFR 185's , ROLLER Rockers.
Cam: DON'T OVER CAM THE MOTOR!! Ford Motorsport B303 or a Comp Cams Equivelent.
go with a Rolloer cam.
Intake: if its not EFI, then go with Edlebrock performewr RPM intake with holley 750 Double pumper.
Good distributor, With a MSD 6A
Good set of shorty headers
you'll come out around 9.1 comp. you'll be able to run on pump gas, you'll make all you tork and HP before 5500 RPM it will be very easy to drive on the street as well as reliable, and it will make 400+ HP DW
351W block: .030. have the block o decked and line bored.
Stock rods W/ARP rod bolts,
Hyperutectic piston, moly rings, Double roller timming set,
Oil punmp, if your planning to stay under 6Krpm stock is fine, if your go turn the motor up alot, then go with HIGH VOL. MELLING pump.
Heads: AFR 185's , ROLLER Rockers.
Cam: DON'T OVER CAM THE MOTOR!! Ford Motorsport B303 or a Comp Cams Equivelent.
go with a Rolloer cam.
Intake: if its not EFI, then go with Edlebrock performewr RPM intake with holley 750 Double pumper.
Good distributor, With a MSD 6A
Good set of shorty headers
you'll come out around 9.1 comp. you'll be able to run on pump gas, you'll make all you tork and HP before 5500 RPM it will be very easy to drive on the street as well as reliable, and it will make 400+ HP DW
Posting Guru
Joined: Jul 2003
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From: Independence, MO
building a 351
Just something to consider here, lots of people build motors for street use and thats great, but heres comom errors people make;
single plane for street: no , it a high rpm design, dual plan would be better, the single plane will scream 4k rpm up, but the dual will make better power 1500 rpm - 5500rmp
Exaust- 3" front to back ? NO! big mistake, people think the bigger the better, only true for high rpm , 2 to 2 1/2' tail pipes on free flowing system give you more mid range tork!
CAMS- comon mistake people over cam street motors, Shure they sould good and the motor will scream like hell at high RPM , but consider on a street drivin car/truck you be running between 2k and 4k rpm 85% of the time, so where do you want to make the most power?
3500 rpm stall? Thats a lot of Stall unless you planin on runing a BIG CAM witch would be over kill on the street. Just something to think about! Good luck with your motor! DW
single plane for street: no , it a high rpm design, dual plan would be better, the single plane will scream 4k rpm up, but the dual will make better power 1500 rpm - 5500rmp
Exaust- 3" front to back ? NO! big mistake, people think the bigger the better, only true for high rpm , 2 to 2 1/2' tail pipes on free flowing system give you more mid range tork!
CAMS- comon mistake people over cam street motors, Shure they sould good and the motor will scream like hell at high RPM , but consider on a street drivin car/truck you be running between 2k and 4k rpm 85% of the time, so where do you want to make the most power?
3500 rpm stall? Thats a lot of Stall unless you planin on runing a BIG CAM witch would be over kill on the street. Just something to think about! Good luck with your motor! DW
Elder User
Joined: Mar 2003
Posts: 999
Likes: 1
From: Willamette Valley Oregon
building a 351
Originally posted by DW2455
Just something to consider here, lots of people build motors for street use and thats great, but heres comom errors people make;
single plane for street: no , it a high rpm design, dual plan would be better, the single plane will scream 4k rpm up, but the dual will make better power 1500 rpm - 5500rmp
Exaust- 3" front to back ? NO! big mistake, people think the bigger the better, only true for high rpm , 2 to 2 1/2' tail pipes on free flowing system give you more mid range tork!
CAMS- comon mistake people over cam street motors, Shure they sould good and the motor will scream like hell at high RPM , but consider on a street drivin car/truck you be running between 2k and 4k rpm 85% of the time, so where do you want to make the most power?
3500 rpm stall? Thats a lot of Stall unless you planin on runing a BIG CAM witch would be over kill on the street. Just something to think about! Good luck with your motor! DW
Just something to consider here, lots of people build motors for street use and thats great, but heres comom errors people make;
single plane for street: no , it a high rpm design, dual plan would be better, the single plane will scream 4k rpm up, but the dual will make better power 1500 rpm - 5500rmp
Exaust- 3" front to back ? NO! big mistake, people think the bigger the better, only true for high rpm , 2 to 2 1/2' tail pipes on free flowing system give you more mid range tork!
CAMS- comon mistake people over cam street motors, Shure they sould good and the motor will scream like hell at high RPM , but consider on a street drivin car/truck you be running between 2k and 4k rpm 85% of the time, so where do you want to make the most power?
3500 rpm stall? Thats a lot of Stall unless you planin on runing a BIG CAM witch would be over kill on the street. Just something to think about! Good luck with your motor! DW
This man speaks with much wisdom.
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