roller cam in a 86?
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Junior Member
Joined: Nov 2000
Posts: 17
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From: Nanticoke,P.A.,USA
roller cam in a 86?
i was wanderin if i could put a 87+ hydro. roller cam in my 86tpi 305 motor,,,,and also with the stock heads how much lit cn i put in with only changin the valve springs,,,,?....thanx
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86 Trans Am,T-Tops,305tpi,7r4(rebuilt w/shift improvments&added clutches,9-bolt(2:77:,flowmaster,3" cat back,,,otherwise completely stock
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86 Trans Am,T-Tops,305tpi,7r4(rebuilt w/shift improvments&added clutches,9-bolt(2:77:,flowmaster,3" cat back,,,otherwise completely stock
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
The short answer is no, but the long answer is yes.
The factory roller cams require a retainer plate which the older blocks are not equipped to accept. You can put a "retrofit" roller system in there however; for decades before the factories caught on, we had all been using roller cams with other hardware to put them in the older blocks. You could probably use the same setup to put a factory roller cam in a non-equipped block, and you can definitely get non-factory roller cams for your early model block. The "retrofit" style roller lifters for each cylinder are connected together (in pairs) with links, to keep them from turning; and there's a little thrust bearing you use between the nose of the cam and the timing cover, to hold it in place. The factory's hallucination of a retainer system for roller lifters is to hold them from turning by the "spider" that bolts into the lifter valley, which older blocks again lack the casting bosses and bolt holes to accept.
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"So many Mustangs, so little time..."
The factory roller cams require a retainer plate which the older blocks are not equipped to accept. You can put a "retrofit" roller system in there however; for decades before the factories caught on, we had all been using roller cams with other hardware to put them in the older blocks. You could probably use the same setup to put a factory roller cam in a non-equipped block, and you can definitely get non-factory roller cams for your early model block. The "retrofit" style roller lifters for each cylinder are connected together (in pairs) with links, to keep them from turning; and there's a little thrust bearing you use between the nose of the cam and the timing cover, to hold it in place. The factory's hallucination of a retainer system for roller lifters is to hold them from turning by the "spider" that bolts into the lifter valley, which older blocks again lack the casting bosses and bolt holes to accept.
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"So many Mustangs, so little time..."
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