5.0 rebuild?

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5.0 rebuild?

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Mustang Forums >> Ford Mustang Tech >> 5.0 Mustang >> 5.0 rebuild?

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5.0 rebuild? - 5/9/2008 11:00:01 AM

Jonboy2389

Posts: 34
Joined: 4/17/2008
Status: offline

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.

Post #: 1

RE: 5.0 rebuild? - 5/9/2008 11:04:28 AM

Jonboy2389

Posts: 34
Joined: 4/17/2008
Status: offline

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

(in reply to Jonboy2389)

Post #: 2

RE: 5.0 rebuild? - 5/10/2008 12:09:27 AM

PJC Racing

Posts: 429
Joined: 2/3/2008
Status: offline

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.

_____________________________

89 LX Coupe: Factory 5.0, common performance and suspension bolt-ons (306 build inprogress)
86 GT: (current 1/4 project) will have primarily Team Z suspension and chassis additions, 408 with nitrous in the works
2003 Mach 1: programer, exhaust, 4.10'

(in reply to Jonboy2389)

Post #: 3

RE: 5.0 rebuild? - 5/10/2008 6:40:25 AM

mjr46