5.0 rebuild? (Full Version)

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5.0 rebuild?

  

Jonboy2389 -> 5.0 rebuild? (5/9/2008 11:00:01 AM)

Ok so im doing a rebuild on my motor this summer on my 89 mustang gt and was wondering if i had to get stiffer valve springs?Im guna b running an f303 cam with the ford hydraulic lifters.Any1 kno a good set of springs for this application and how stiff a springs ill need? If helpful im guna b using gt40 heads with new factory compression pistons.

  
Jonboy2389 -> RE: 5.0 rebuild? (5/9/2008 11:04:28 AM)

prolly doesent matter but either but the heads are guna be bored about .030 ova

PJC Racing -> RE: 5.0 rebuild? (5/10/2008 12:09:27 AM)

I know for that cam and E7 heads you would need FRP A-50 springs and B-50 retainers. If the GT-40 has the same spring pockets as the E7's it would be the same. Contact a Ford Racing Parts Distributor and check.

mjr46 -> RE: 5.0 rebuild? (5/10/2008 6:40:25 AM)

quote:

ORIGINAL: Jonboy2389

prolly doesent matter but either but the heads are guna be bored about .030 ova


you mean the block[8|]  heads aren't bored they're ported......and you can get the springs and retainers at summit racing = a-50 springs and b-50 retainers[;)]

  

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