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Classic Mustangs Tech Forum

Technical discussions specific to 1964-1967, 1968-1970, and 1971-1973 Classic Mustang. Discuss all tech related to in-line six cylinder and V8 powered Vintage Mustangs here.

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Unread 12-25-2007   #1 (permalink)
jharley79 is offline Rookie

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Question Solid Lifters and Cam in 1967 Mustang 289 V8 worth the effort?

Hey all, I have a 1967 with a 302 in it right now. I'm about to pull the 302 out and put my 289 back in. I was wondering what it would take to go with solid lifters. I found a solid lifter cam and was wondering if it was as easy as just putting the cam in and putting solid lifters in. Would it be worth the effort? It's a stock 289. any input or advice is appreciated. Thanks
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Unread 12-25-2007   #2 (permalink)
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Actually take a long hard look at a roller cam, I'm pretty much "old school" and was going to run a solid cam in my motor but I think it's time for this old dogto learn a new trick and go with a roller, they just perform better, more agressive profile with better streetability, and retro-fitting an old block isn't a problem, if you don't want to go roller then there are some pretty agressive hydraulic proifiles avaliable you can push a solid cam a bit further but with the added maintenance of periodic lash adjustments which have never bothered me but some folks don't like...but roller is the way to go...it just makes more sense.
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Unread 12-26-2007   #3 (permalink)
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Solid lifter cam in a stock 289 will not do much for performance. The idea of a solid lifter can is to be able to increase hp by greatly increasing RPM. To turn a 289 you need ported heads or after markets, larger valves, new valve springs (to match the cam), 4 into 1 headers, high rise intake, 600 cfm holley carb and forged pistons.

A mild roller will increase power in combination with tri-y headers, with cross pipe and high rise intake. Only need about 500, 550 cfm carb.
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Unread 12-26-2007   #4 (permalink)
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Thanks for the input. Guess I'll just leave it alone. the 289 is just going back in till I build something else for it, so I don't want to really put any money into it and do the roller conversion or anything. Thanks alot guys.
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Unread 12-27-2007   #5 (permalink)
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It's best to leave it alone. You'd need to have the rocker arm studs changed to the threaded design, meaning machine work to the heads and also getting adjustable rocker arms to add to the list.
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Unread 12-27-2007   #6 (permalink)
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I totally agree - I had a solid cam in my 289 but later replaced it with a hyd and it ran great. I am in live with the 351 in my 65 - if you are looking for a lot of power and not a lot of money consider that as an option too. Squose in without a single cut!

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Originally Posted by Rejoin the Herd View Post
Solid lifter cam in a stock 289 will not do much for performance. The idea of a solid lifter can is to be able to increase hp by greatly increasing RPM. To turn a 289 you need ported heads or after markets, larger valves, new valve springs (to match the cam), 4 into 1 headers, high rise intake, 600 cfm holley carb and forged pistons.

A mild roller will increase power in combination with tri-y headers, with cross pipe and high rise intake. Only need about 500, 550 cfm carb.
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Unread 12-27-2007   #7 (permalink)
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I'd sell both eng's and find a 85 up 5.0 roller shortblock and go from there. Hyd roller cams are so much better and with our low zinc oils flat tappet cams can be hit or miss on break in, the 289hp solid cam is an antique, there are smaller cams with newr technology that will make more power,more vacuum, idle smoother, turn higher rpms and use less fuel. If you took a 289hp and a late model 5.0 and put them on the dyno the peak hp would be almost exactly the same but the 5.0 would make way more low end torque, idle smoother and get way better fuel economy on 87 octane fuel vs 92 octane, on a 289-302 street driver you want as much low end as possible......

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