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1990 f150 with 5.0 explorer 40Ps

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Old Apr 17, 2023 | 05:48 PM
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1990f150bonz
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1990 f150 with 5.0 explorer 40Ps

I'm currently assembling a fresh 97 explorer block and 40p heads with 30 over pistons. Going in a 1990 f150. Speed density hang up with efi I hear. Figured while it's out I'd look for a tow camshaft. Or something a lil peppier. I use it to tow 4k lbs roughly. Any recommendations would be great. I'm not too knowledgeable on cam upgrades. AOD tranny also. Current lifters are roller bottoms and flat tops. Which are being replaced also. Thank you in advance. I get lost reading these forums till my brains numbs and the beers kickin' in lol.
 
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Old Apr 17, 2023 | 05:53 PM
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Originally Posted by 1990f150bonz
I'm currently assembling a fresh 97 explorer block and 40p heads with 30 over pistons. Going in a 1990 f150. Speed density hang up with efi I hear.
No... not really.

Originally Posted by 1990f150bonz
Figured while it's out I'd look for a tow camshaft. Or something a lil peppier.
Don't just add 1.7 rockers, the Explorer cam is already a pretty good RV grind.

Originally Posted by 1990f150bonz
Current lifters are roller bottoms and flat tops. Which are being replaced also.
With what.. new Ford roller lifters?
 
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Old Apr 17, 2023 | 08:17 PM
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Yeah. Looks like standard rockers.
 
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