What's involved in 426 install?

[racy]

I'd like to know what is required for a 426 engine swap with a 5.7l 300C. Ovbiously, I'd have to get the engine, and I've seen a vendor on here offering them for sale. Sofar, I've only seen one.

What else is required for the swap? Is a new PCM and/or harness required? An exhaust change, I am assuming is also required because the stock stuff won't bolt up, and besides it would be a waste to have stock exhaust on a 426 hemi.

It seems that the price adds up quickly, from start to finish.

Thanks for any info,

greg

[Midnightsun300c]

I would suggest checking with PPP, they would know for sure. I would guess that at the very least the PCM and TCM would have to be re-flashed for the 6.1 and the injector pulse would have to be modified for the stroke. Headers and 2.75"-3" exhaust would probably be a good fit also. I would be curious to the cost when you get a handle on it. You might want to price a new rear end and half shafts too.

[stevesrt8]

What's involved is about 15 thousand dollars or so!

[Jected]

To do it properly and have everything working as it should you would be looking at the purchase or build cost of the engine, R&R of engine, headers, hi flow cats, cat back, torque convertor, half shafts, edit and lots of misc bits and pieces. $15K min and up.

[Power Ported Performance]

Depends on your definition of a 426. You can buy the 426 shortblock and install all the 5.7 components on it for $5800 plus install. It just depends on how far you want to take it.

[racy]

Originally Posted by Power Ported Performance

Depends on your definition of a 426. You can buy the 426 shortblock and install all the 5.7 components on it for $5800 plus install. It just depends on how far you want to take it.

So is the 426 based on the 5.7?

[Power Ported Performance]

Originally Posted by racy

So is the 426 based on the 5.7?

No, its a 6.1 block which is the exact same as far as swapping parts over. All 5.7/6.1 parts interchange. You take the 6.1/426 bottom end and bolt the 5.7 heads/intake/oil pan on and your done.

[racy]

Originally Posted by Power Ported Performance

No, its a 6.1 block which is the exact same as far as swapping parts over. All 5.7/6.1 parts interchange. You take the 6.1/426 bottom end and bolt the 5.7 heads/intake/oil pan on and your done.

Okay, so this isn't all that bad then. No PCM swap or anythink like that. It sounds to me like a straight engine swap.

[Power Ported Performance]

Originally Posted by racy

Okay, so this isn't all that bad then. No PCM swap or anythink like that. It sounds to me like a straight engine swap.

Just swap the bottom end over. You should get a cmr tune done afterwards as well.

[xlr8r]

interesting- how much are you losing 5.7 top end vs. 6.1? Thinking for forced induction situation, need to build the bottom end anyway.