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Apr 5, 2018 | 07:42 PM

dert

Thread Starter

New User

Joined: Dec 2015

Posts: 4

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Recommendations please

Hello all. So this truck is not in great condition for starters. I plan on using it as a work truck and fixing it up over time. It is a 78 f100 classic with the 300. I started by replacing a blown head gasket, found a couple bent pushrods and very worn rocker arm. I replaced them all and carried on. When doing the head gasket I just involved the intake/exhaust from the head and pushed off to the side. Due to poor planning I ended up trying to clean the gasket off the intake manifold after the head was back on. Did not have enough room so I decided to pull the 3 bolts and just take the intake mani all the way off. The bottom of the manifold had very bad pitting and basically just fell off. I have another intake manifold ordered. Since I keep running into stuff and don't want to have to dig back into it anytime soon is there anything anyone would recommend me replacing while I have everything apart? Or anything common that I should check? Also this engine has 480k miles on it and ran well before the head gasket. I am only a couple hundred deep on repairs and don't want to dump money into a well aged engine just get it running good until I am in a place where I can really do this thing right. Mayne in a couple years. Thanks!

Apr 5, 2018 | 09:07 PM

VitaminC

Tuned

Joined: Feb 2014

Posts: 335

Likes: 2

From: USA

Pull the motor and rebuild it.
Bent pushrods are no bueno and could be signs of larger issues.

Apr 6, 2018 | 06:32 AM

njdevil77

More Turbo

Joined: Aug 2017

Posts: 605

Likes: 156

From: NJ

480,000 miles on it, Time for a rebuild, you will fix all the issues you are having, tighten everything up and the rest will slowly begin to fall apart.

Apr 6, 2018 | 08:35 AM

speedfreak78

Cargo Master

Joined: Nov 2007

Posts: 2,238

Likes: 475

If the cylinder bores looked good and it has good compression, run it. With the miles on it, if it hasn't been rebuilt a some point, the bearings might be pretty beat, or they could be fine, without pulling main/ rod caps there's no way to know. Bent push rods could be a sign the motor had been worked hard and over revved. Have you looked at local classifieds, they made these motors into the 90s? Might be able to find a lower mileage motor for a couple hundred bucks.