351 roller lifter vs. non roller
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351 roller lifter vs. non roller
my motor blew up in my 96 f-250 and i have another motor out of a 92 bronco that is fully rebuilt with roller rockers and, ported stock heads. the only thing it needs is a cam. i was going to either get a comp, or a custom grind. my question is how much more power will i get from the non roller lifter motor with these mods compaired to the roller lifter stock motor?
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its a 4x4 lifted with 33in tires and 410 gears and i do a fair amount of towing so it dosent see high rpms. i just need to know if its worth it to use or not. i need to get the truck running soon so swaping out the components of the 92 into the 96 motor is not somthing i want to do unless it will have much more noticeable power.
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Originally Posted by jeffj2689
my question is how much more power will i get from the non roller lifter motor with these mods compaired to the roller lifter stock motor?
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i decided to use the non roller lifter motor in my truck.
but i need to get a cam for it. does anyone have any suggestions on which one to get?? i was either thinking of calling comp cams and asking them what they would prefer or getting a custome ground one from a company that many use on fte (i forget their name but i have their phone #).
whatever route i go i will get a kit with matching lifters, pushrods, and springs.
OH, and i forgot to tell you guys that the ported heads are gt-40's, so i dont know if that makes a difference in pushrod lenght or cam choice.
Thanks, FTE RULES
but i need to get a cam for it. does anyone have any suggestions on which one to get?? i was either thinking of calling comp cams and asking them what they would prefer or getting a custome ground one from a company that many use on fte (i forget their name but i have their phone #).
whatever route i go i will get a kit with matching lifters, pushrods, and springs.
OH, and i forgot to tell you guys that the ported heads are gt-40's, so i dont know if that makes a difference in pushrod lenght or cam choice.
Thanks, FTE RULES
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From: Ottawa, Ontario
Originally Posted by jeffj2689
i decided to use the non roller lifter motor in my truck. But i need to get a cam for it. does anyone have any suggestions on which one to get?? Thanks, FTE RULES
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Conanski:
Did any of thoes cams make a difference over stock, and what were the losses, if any?? My truck is mass air so i know that i have more choices than a speed density EFI.
HemiEater:
im going to put pics of my truck up tomorow or thursday, but the motor will have to wait. it isnt painted and still needs to be finished but i will post pics of it when its done, which will be soon.
Did any of thoes cams make a difference over stock, and what were the losses, if any?? My truck is mass air so i know that i have more choices than a speed density EFI.
HemiEater:
im going to put pics of my truck up tomorow or thursday, but the motor will have to wait. it isnt painted and still needs to be finished but i will post pics of it when its done, which will be soon.
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From: Ottawa, Ontario
Originally Posted by jeffj2689
Conanski:
Did any of thoes cams make a difference over stock, and what were the losses, if any?? My truck is mass air so i know that i have more choices than a speed density EFI.
Did any of thoes cams make a difference over stock, and what were the losses, if any?? My truck is mass air so i know that i have more choices than a speed density EFI.
Mass air does give you more selection on cams, but the RV grind cams with wider LSA will produce more pulling power.. which is what a truck needs.
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Conanski: thanks for the cam help. im going to order one this weekend
HemiEater:
i did not take pics of the heads because i didnn port them. i had a friend of mine port them who builds race car motors do it for me, but ill try and get some before i put the motor in.
HemiEater:
i did not take pics of the heads because i didnn port them. i had a friend of mine port them who builds race car motors do it for me, but ill try and get some before i put the motor in.
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all of these are very knowledgable posts but read my forum therad before deciding final
https://www.ford-trucks.com/forums/6...help-plzz.html
https://www.ford-trucks.com/forums/6...help-plzz.html