engIne 302 help
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Freshman User
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engIne 302 help
I have a 302 out of a 91 or 92 f150, and I want it to have a lopey sound. I like the way the thumpr cam sounds, so I was thinking about getting that. My question is, can I just buy the cam and put it in? Or will the thumpr be too much for the motor? Thanks
Hotshot
Joined: May 2003
Posts: 11,141
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From: south louisiana
If you're keeping this in that pickup ? No. You cannot swap in a "lumpy cam" If you're going to put it in a carbed vehicle, then yea you can do a cam swap. The block is a roller cam block, you'd be taking a step backwards with a flat tappet cam, if that's what you were looking at.
Senior User
Joined: Nov 2011
Posts: 456
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From: Owensboro, KY
You'd need a carb or MAF EFI setup to run a radical cam. Roller blocks started in mid-'85/'86, but trucks did not come with roller cams until 1992, and even those are terrible compared to the '94+ roller cams.
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I have a 1964 f100. I found a guy who took that 302 out of the f150 and put it in his 92 mustang. He carburetorated it with a high rise intake. I bought that motor from him for my f100 and I wanted to put a thumpr cam in it. So my question, will it work? This is what I was looking at,
http://m.ebay.com/itm/141373976916?cmd=VIDESC&gxo=true
Will that be all I need? Thanks
http://m.ebay.com/itm/141373976916?cmd=VIDESC&gxo=true
Will that be all I need? Thanks
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
I have a 1964 f100. I found a guy who took that 302 out of the f150 and put it in his 92 mustang. He carburetorated it with a high rise intake. I bought that motor from him for my f100 and I wanted to put a thumpr cam in it. So my question, will it work? This is what I was looking at,
Comp Cam SBF Ford 279 297 490 475 Thumpr Thumper Camshaft 302 351W | eBay
Will that be all I need? Thanks
Comp Cam SBF Ford 279 297 490 475 Thumpr Thumper Camshaft 302 351W | eBay
Will that be all I need? Thanks
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Check the casting numbers on the block. They're at the rear. If they're above te starter, it's not a roller. If they're on the other side (drivers side) it could be either. Roller numbers I've seen are E6SE, E7TE, F1SE.
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More Turbo
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My F1SE is cast as such above the starter
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Freshman User
Joined: Aug 2014
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Well will this cam work though regardless of if it's a roller block or not? I'm not that skilled with cams, but I know how to put it in and take it out. I'm just not sure if everything will fit right
Posting Guru
Joined: Jul 2013
Posts: 1,685
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From: Oregon
If you're hell bent on the cam then get it. Get the recommended lifters for it and then do a mock up and check your pushrod length for correct rocker geometry. Just my opinion, but buying a cam for "sound" is the wrong reason. Good luck, and post up your results. 
Hotshot
Joined: May 2003
Posts: 11,141
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From: south louisiana
It will work, problem is with flat tappet cams today is "will they break in" without wiping a lobe or two. If you're that inexperienced, a roller cam is what you need to go with. There's more to flat tappet cams now in terms of breaking them in than just putting the cam in the block. There are things that need to be done in the installation, and even then there's no guarantee of success.
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Ok, I typed that based on picturing the block in my mind, I don't have one handy to look at. I was thinking there's no place there for the numbers with the starter cutout and the numbers aren't cast in the same location as the pre 80's blocks. The roller 351W casting numbers I know are cast in the old location above the starter.
FTE Legend
Joined: Jun 2006
Posts: 31,930
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From: Ottawa, Ontario
It's an almost certainty that the block is roller ready, the big question is does it already have a roller cam in it, because if it does swapping in a B303 is dumb easy and will be relatively cheap, but if it doesn't then installing a roller cam is going to be a lot more expensive. To find out of it has a roller cam remove one valve cover and the front rocker and pushrod, and shine a light down the pushrod hole to see if there is a dogbone around the lifter. If it does then the motor has a roller cam.
