352 rebuild question

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Dec 2, 2011 | 12:15 AM

pclayton

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From: Pleasanton

352 rebuild question

So i'm in the process of rebuilding a stock 352, and have a question about upgrading it. I know there are a lot of threads covering rebuild questions like this, but i havent found one that answers this question. If i am correct, it is possible to put in a crankshaft and piston rods from a 428 FE, which would increase the total CID to 400. But what i dont know, is will i have to upgrade anything else in the engine to compensate? Like pushrods, or valve springs or anything like that? Im a teenager, and have had limited experience in this so far, so any advice would help. Thanks guys.

Dec 2, 2011 | 02:08 PM

85e150

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What is the intended use of the engine?

Budget?

Type of vehicle?

Lots of options, and planning is a good idea. Usually, you are going to be replacing cam, springs and probably other valve train items.

Dec 2, 2011 | 03:54 PM

Bear 45/70

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From: Union, Washington

Short answer is NO. The stock 428 rods will hit the sides of the small bores on the 352.

From the Ford Muscle Parts Book:

"You need to use special non-Ford pistons (read expensive) to maintain correct deck height or you can use 390PI rods for medium performance applications. The 428CJ/427 rods are too wide for the 4.00" bore."

Dec 2, 2011 | 06:39 PM

pclayton

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From: Pleasanton

ok, thanks for the answers. thats all i needed to know. the engine is going in a 64 f100, and will be mostly just driven to school and back every day. i got it for free from a mechanic who just had it sitting around. they had already reconditioned the heads, honed the cylinders, and put in new pistons (with rods), camshaft, and valve springs. I was just looking for a way to add some extra power without breaking the bank. (i've got a small budget). so it looks as if i'm going to be keeping it stock after all.

Dec 2, 2011 | 06:53 PM

69cj

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From: Middle Tn.

If it's going to be a daily driver, school etc. more power equals more fuel. Keep that in mind if your on a budget.

Dec 2, 2011 | 06:59 PM

Bear 45/70

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Quote:

Originally Posted by 69cj

If it's going to be a daily driver, school etc. more power equals more fuel. Keep that in mind if your on a budget.

This is patently NOT true. A 600 CFM 4 barrel with vacuum secondaries will out MPG a 2 barrel every time under normal driving conditions. If you are a lead foot, neither is gonna give you decent mpg.

Running a 450 hp engine very easy will get you better mpg than beating the crap out of a 150 horsepower engine will.

More horsepower only cost you money when you use it.

Dec 2, 2011 | 07:30 PM

69cj

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From: Middle Tn.

Since you know everything Bear, where does he state that he has a 2 barrel. We are trying to help a kid on a limited budget with limited knowledge that uses this thing for school etc, not someone trying to conquer the 1/4 mile.