I need some help from Conanski please
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Tuned
Joined: Mar 2007
Posts: 342
Likes: 1
From: South central kansas
I need some help from Conanski please
Mr. Conanski, I am getting ready to rebuild a 351w from an 83 ford F250. I am wondering about heads. The truck will need a strong bottom end. It will be for mud, sand, and trails. Max torque from 1000-4000 rpm. Just wondering what size chambers and runners a guy would need for this purpose. Had someone in another thread say they thought 351M heads would work and flow real good, but the adapting is pretty extensive? Any thoughts on that? Thanks, for your knowledge.
Posting Guru
Joined: Jul 2004
Posts: 2,244
Likes: 2
From: Cottage Grove, WI
I know im not conanski, but im also rebuilding a 351W for my mud truck, and im going with the Trick Flow Twisted Wedge heads. Ive heard nothing but good things about these heads from people that run them.
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Tuned
Joined: Mar 2007
Posts: 342
Likes: 1
From: South central kansas
The only two things I do not like about the twisted wedge heads is 1) Price. 2) I am not looking to use their pistons-(back to price) I am looking for a more budget oriented build. Take a set of heads off another vehicle, rebuild them and stick them on my truck. But thanks for the info.
Posting Guru
Joined: Jul 2004
Posts: 2,244
Likes: 2
From: Cottage Grove, WI
I am not going to use their pistons either. If you need their pistons is wholly dependant on the cam you get. Before you rule them out, figure out what cam you are going to go with, and call up trick flow. Give them the specs, (part number also if its got one) and they will tell you right there if you will be able to run stock pistons or not. Only with really agressive cams or high compression do you need to use their pistons.
My build is going to be a completely stock lower end.
Heres their phone number. I know its up to you, i just dont want you to rule something out because its not an option, when really it still is:
330-630-1555
My build is going to be a completely stock lower end.
Heres their phone number. I know its up to you, i just dont want you to rule something out because its not an option, when really it still is:
330-630-1555
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
It seems you don't want to spool the motor too high so a set of E7's or GT40's will likely do the trick for you. Put some flattop pistons in the bottom end for roughly 9.5:1 CR, and install something like the Performer intake and a conservative cam and the motor will make great power where you want it. I can add some more specifics later....
Thread Starter
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Tuned
Joined: Mar 2007
Posts: 342
Likes: 1
From: South central kansas
Thanks rebel, I am not going to rule anything out. I still have to pull the motor and tear it down. I will keep them in mind. Also thanks conanski. I was wondering if gt40's would work good for the low end power. I am planning on running a holley truck avenger carb. probably a 670cfm, but maybe a 470 depending on need. How much adapting would I have to do to get the gt40's to fit my windsor block?? Thanks again
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
If the set you get is off a 302 then you just need to drill out the bolt holes to 1/2".
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FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
GT40's
Comp 35-238-3
600cfm carb
Eddy Performer Airgap intake
1.5" longtubes
flattop pistons for 9.5:1 CR
375Tq at 2000rpm
300Hp at 4500rpm
Comp 35-238-3
600cfm carb
Eddy Performer Airgap intake
1.5" longtubes
flattop pistons for 9.5:1 CR
375Tq at 2000rpm
300Hp at 4500rpm
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Postmaster
Joined: Jan 2009
Posts: 4,558
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Just a note on heads.. I was on craigs list the other day & seen a lot of the 69-70 heads off 351 mach 1s & boss 302s...they where going for 500-600 depending on how much work done to them ...a lot of the 90s 5.0 stang guys used these heads.. mabee there parting them out ??
Freshman User
Joined: Jan 2009
Posts: 35
Likes: 0
From: Mt Juliet, TN
how much you wanting to spend on a set of gt40's? I have a 93 lightning I am thinking about swapping a set of aluminum's onto. GT40's do make good power down low...pm me if your interested....
Postmaster
Joined: Jul 2003
Posts: 3,934
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From: iowa
There is more support now than ever for clevors. Although i dont recommend for this build, edelbrock even makes clevor intakes for the 302 and 351w, they call them e-boss. Cylinder head innovations makes the real badass stuff that afr can't touch.
Thread Starter
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Tuned
Joined: Mar 2007
Posts: 342
Likes: 1
From: South central kansas
Thanks for the replies, I appreciate the info. I was looking on ebay this morning and found several sets of gt40p heads for 300 to 500 bucks. Not bad considering jegs and summit are more than that for 1 LOL. Does a machine shop have to drill out the holes, or is it something I can do?? I know a machinist I could take it to, I am just wondering. Thanks
Postmaster
Joined: Jan 2009
Posts: 4,558
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I shouldnt have used the word boss... The heads i seen were all 351 W heads I didnt know you could put cleveland heads on a 302