Community Q&A Question: '88 302 - Updating & Improving

Asking About: Mustang Ford Racing E303 Camshaft Hydraulic Roller, E Cam (85-95) 5.0L/5.8L


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'88 302 - Updating & Improving

Looking to order this cam - #M6250E303
with these pushrods - #M6565L302
and these Hyd. Roller rockers - #M6500R302
can't forget these springs - #TFS-2500100
Why do I need 1.7 rockers when my engine came with 1.6 rockers?
from Spokane |
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Accepted Answer
You're welcome. Yes, the lifters need to be changed. Just get the stock Ford lifters & you will be fine.
from Granada Hills |
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This cam was designed for use with 1.6RRs. The 1.7 will provide too much lift and too much side loading on the valve stem. I have this cam in my car. It is a good cam. You cannot use the stock stamped 1.6RRs because they will bind with the cam and required spring set up. The ProForm 1.6RRs may not fit properly under your stock valve covers. I used Scorpian Endurance 1.6 RRs. They are a better product. However, under my 95 GT valve covers they also did not fit, but the fit was closer than the ProForm RRs. I had to clearance my stock covers carefully with a hammer and blunt punch tool. The ProForm RRs weren't even close to fitting.

You can try a taller EFI valve cover like one they sell on this site, but I do not know if it will fit under the EFI manifold.
from Granada Hills |
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This is a efi to carb swop and I have tall valve covers that are new. The stock 1988 covers were way lower then what I replaced them with. Would reducing bind be handled with a double spring, since that is what they are designed to help prevent. - Brad last year
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I have a double spring set up on my car. The instructions & my head builder warned about bind with the stock stamped RRs. Yes, there may be more cost involved, but do yourself a favor and do it once. Get a decent set of 1.6RRs so you don't need to go back in.
from Granada Hills |
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Also, don't forget the roller lifters either. You should change them if you change the cam so that you do not have a failure concern.
from Granada Hills |
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Ok, thanks and will change the lifters. 30 years old if original equipment need to be replaced. 1985 TBird with 1988 302 build. - Brad last year
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