No such thing as a conversion kit, I hate how they market that crap. You use the dogbones, tray and lifters from a 302 BUT you must use a small base circle cam, which is absolute junk. Just find an F4 block, there everywhere just look
No such thing as a conversion kit, I hate how they market that crap. You use the dogbones, tray and lifters from a 302 BUT you must use a small base circle cam, which is absolute junk. Just find an F4 block, there everywhere just look
woodsy Im pretty damn sure Comp cams makes lifters specificly for std. base roller cams in a non-roller block. And they are considered conversion or some other word that pretty much means the same thing. And I'm not talking about the link bar style, these lifters do use the lifter but they are specific to non roller blocks, so there is no issue with oil pressure. They are pricey however.
Ive also heard that the F4 casting started in 92, so if thats true then 92-93 blocks are roller capable. Kind of like what ford did with the 302, it was roller capable for a few years b4 ford started pointing the roller setups in. atleast thats what Ive read in books.
No such thing as a conversion kit, I hate how they market that crap. You use the dogbones, tray and lifters from a 302 BUT you must use a small base circle cam, which is absolute junk. Just find an F4 block, there everywhere just look
My "junk" small base circle cam and conversion kit makes 550+hp lap after lap.
Yes, 5.0kid, you can easily convert a non-roller to a roller. The only real changes you have to do is drill and tap two small holes in the valley to hold the spider down. And some blocks will need a little grinding at the top of the lifter bores to allow the dog bones to sit flat. Other than that, the installation is the same for every other part.
Don't be afraid to use a roller cam in a non-roller block. With a bigger cam, you'll make more power. With smaller cams, power will be the same. If nothing else, just so you don't have to worry about finding the right oil.
No such thing as a conversion kit, I hate how they market that crap. You use the dogbones, tray and lifters from a 302 BUT you must use a small base circle cam, which is absolute junk. Just find an F4 block, there everywhere just look
woodsy Im pretty damn sure Comp cams makes lifters specificly for std. base roller cams in a non-roller block. And they are considered conversion or some other word that pretty much means the same thing. And I'm not talking about the link bar style, these lifters do use the lifter but they are specific to non roller blocks, so there is no issue with oil pressure. They are pricey however.
Ive also heard that the F4 casting started in 92, so if thats true then 92-93 blocks are roller capable. Kind of like what ford did with the 302, it was roller capable for a few years b4 ford started pointing the roller setups in. atleast thats what Ive read in books.
No such thing as a conversion kit, I hate how they market that crap. You use the dogbones, tray and lifters from a 302 BUT you must use a small base circle cam, which is absolute junk. Just find an F4 block, there everywhere just look
My "junk" small base circle cam and conversion kit makes 550+hp lap after lap.
Yes, 5.0kid, you can easily convert a non-roller to a roller. The only real changes you have to do is drill and tap two small holes in the valley to hold the spider down. And some blocks will need a little grinding at the top of the lifter bores to allow the dog bones to sit flat. Other than that, the installation is the same for every other part.
Don't be afraid to use a roller cam in a non-roller block. With a bigger cam, you'll make more power. With smaller cams, power will be the same. If nothing else, just so you don't have to worry about finding the right oil.
if you think small base cams are good, I feel for you. They are junk. If you could only see what that cam is doing at rpm with any decent spring pressure you would think twice, and 550 aint **** nowadays, sorry if I bump your ego. I been building nothing but small fords since 89', before we had anything good, been there done that long, long time ago.
Posts: 363
Joined: 10/27/2003 From: United States Status: offline
Drilling and installing the tray and dogbones in a no roller block is a bad idea. Stock roller lifters will not work properly. The reason is an oiling issue. That is one for the reasons they offer reduced base circle camshafts. With a reduced base circle cam you don't need the tray and dogbones. The only downside to reduced base circle cams is that there aren't alot of off the shelf cams offered and most aren't very good. The alternative is to use the link bar lifters. They do not make stock style roller lifters for a non roller block. As for castings the F4 stands for "F" 1990's and "4" stangs for 1994 specifically. Roller blocks were only offered from 94-96. They all are F4TE castings. Bigger cams don't always mean big power. If you don't have the rest of the combo to support it, then your just wasting money.
< Message edited by S351R13 -- 5/14/2008 7:20:41 PM >
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96 S351R #13 99 S351R #46 99 S351R #14 95 Mustang "project on a Diet" 03 S281SC #279 "Sold" Hollywood HP car 95 Cobra R #162 "Sold" 94 Cobra 351w swap "Sold"
No such thing as a conversion kit, I hate how they market that crap. You use the dogbones, tray and lifters from a 302 BUT you must use a small base circle cam, which is absolute junk. Just find an F4 block, there everywhere just look
woodsy Im pretty damn sure Comp cams makes lifters specificly for std. base roller cams in a non-roller block. And they are considered conversion or some other word that pretty much means the same thing. And I'm not talking about the link bar style, these lifters do use the lifter but they are specific to non roller blocks, so there is no issue with oil pressure. They are pricey however.
Ive also heard that the F4 casting started in 92, so if thats true then 92-93 blocks are roller capable. Kind of like what ford did with the 302, it was roller capable for a few years b4 ford started pointing the roller setups in. atleast thats what Ive read in books.
>> Drilling and installing the tray and dogbones in a no roller block is a bad idea. Stock roller lifters will not work properly. The reason is an oiling issue. That is one for the reasons they offer reduced base circle camshafts. With a reduced base circle cam you don't need the tray and dogbones. <<
Again, not true. Stock roller lifters work just fine. The interchange issue is the heights of the lifter bores. Rollers are taller than flat tappets. That move the oiling hole too low on the lifter body to work correctly. The small base circle cam moves the lifter further down in the bores to fix that issue.
With a roller lifter, the lifter has to be perfectly aligned to the cam. For that, you need to use the spider and dog bones or a link bar. Doesn't matter what engine or what cam, if it's a roller it has to be aligned.
Yes, 550hp is a lot for a small block in a NA street cruiser. Especially using unmodified off the shelf parts and pump gas. This car will cruise in traffic all day without overheating. At 80mph, it gets 14mpg - that's better than my truck! How many people on this board can make that claim, and have the dyno sheet to back it up?
ok thats relieving right now with my 302 n v-1 im making 474.4 hp im looking to increase to around 700 hopefully with pump gas n drive it daily as i do now
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8th Place at NMRA MILAN True street, and i had a Horrible second run.
Posts: 363
Joined: 10/27/2003 From: United States Status: offline
99 - 540 rwhp pump gas street car on 12lbs of boost. 14 city and 18 highway. The T-56 help. Bone stock except for off road X-pipe.
96 - 632 rwhp pump gas on 7 lbs of boost. 12 mpg city and 16 highway. TKO and 3.55 gear. Stock cubic inches. Ported stock heads, custom cam, extrude honed intake, 72 lbs injectors.
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96 S351R #13 99 S351R #46 99 S351R #14 95 Mustang "project on a Diet" 03 S281SC #279 "Sold" Hollywood HP car 95 Cobra R #162 "Sold" 94 Cobra 351w swap "Sold"
Posts: 363
Joined: 10/27/2003 From: United States Status: offline
When using the dogbones and spider it is ok if you use a reduced base circle cam. You can't do this is you use a standard roller cam.
Remember that when you change cams you have to make sure you have the right valve springs for the camshaft. Roller cams use different springs in alot of cases.
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96 S351R #13 99 S351R #46 99 S351R #14 95 Mustang "project on a Diet" 03 S281SC #279 "Sold" Hollywood HP car 95 Cobra R #162 "Sold" 94 Cobra 351w swap "Sold"
You can use a standard base circle roller on a non-roller block but you have to use link bar lifters. And small base circle cams ARE junk.
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89 LX Coupe: Factory 5.0, common performance and suspension bolt-ons (306 build inprogress) 86 GT: (current 1/4 project) will have primarily Team Z suspension and chassis additions, 408 with nitrous in the works 2003 Mach 1: programer, exhaust, 4.10'
You can use a standard base circle roller on a non-roller block but you have to use link bar lifters. And small base circle cams ARE junk.
I don't believe that's true. The lifter bores in a non-roller block are shorter, because a flat tappet is shorter. If you place a roller lifter in the same bore, it will sit up too high, and not get oiled properly. The purpose of a reduced base circle cam is to move the lifter down in the bore.
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89-92 351w roller or flat tappet block? - 
