Slant Six Forum :: engine swap query

I am assuming that I would get more money for my car if it had a transplant v-8 in it rather than the original 225

1. Am I correct in assuming that the trans on my 225 slant 6 would NOT be a simple bolt on procedure for ANY v-8 and that even if I picked up a 273 I would have to have a new or modified transmission?

2. Of the 273, 318, 340, and 360, is there a v-8 that is far and away the EASIEST to swap in?
3. Of the 273, 318, 340, and 360, is there a v-8 that is far and away the MOST DIFFICULT to swap in?

4. Of the 273, 318, 340, and 360, is there a v-8 that is far and away the most valued and desirable engine to a potential buyer?

Eugene, my .02,

I think that you will be pressed to break even money-wise on a well-executed V8 swap when all is said and done. You'll spend a lot of money on the little things.

You'll need a trans, or trans adapter.

My opinion is the 340 is the most desirable engine for a swap for it's relative rarity and performance.

The 273 is best if you are trying to clone a factory car.

The 360 has the most potential for cubic inches/dollar.

I think any V8 swap is about equivalent in effort spent. If you had a 273 donor car, that would be the easiest route.

Others will chime in with better information, but that's my cut.

Author:	eugene [ Mon Jul 04, 2011 7:39 am ]
Post subject:	engine swap query
As the economy continues to make life harder on my wife and I and I am beginning to consider the prospect of selling my car at some point, preferably when the market gets better. It is a 1966 Barracuda. I am not sure of this, but I did want to ask some engine questions, as I am assuming that I would get more money for my car if it had a transplant v-8 in it rather than the original 225. (Correct me if I am wrong, but that is what I see in the marketplace). My questions to anyone knowledgeable about slant-6 to v-8 engine swaps are: 1. Am I correct in assuming that the trans on my 225 slant 6 would NOT be a simple bolt on procedure for ANY v-8 and that even if I picked up a 273 I would have to have a new or modified transmission? 2. Of the 273, 318, 340, and 360, is there a v-8 that is far and away the EASIEST to swap in? 3. Of the 273, 318, 340, and 360, is there a v-8 that is far and away the MOST DIFFICULT to swap in? 4. Of the 273, 318, 340, and 360, is there a v-8 that is far and away the most valued and desirable engine to a potential buyer? Curiously Yours, Eugene

Author:	GunPilot [ Mon Jul 04, 2011 8:17 am ]
Post subject:
Eugene, my .02, I think that you will be pressed to break even money-wise on a well-executed V8 swap when all is said and done. You'll spend a lot of money on the little things. You'll need a trans, or trans adapter. My opinion is the 340 is the most desirable engine for a swap for it's relative rarity and performance. The 273 is best if you are trying to clone a factory car. The 360 has the most potential for cubic inches/dollar. I think any V8 swap is about equivalent in effort spent. If you had a 273 donor car, that would be the easiest route. Others will chime in with better information, but that's my cut.

Author:	DusterIdiot [ Mon Jul 04, 2011 8:38 am ]
Post subject:	Yep..
I agree with Gunpilot. I've seen a few of these get converted and are for sale online...currently none have sold because the price after the swap was so high it wasn't worth the money (Last one I saw was a 360 powered 1966, the guy would not budge on $10,500...it was for sale for 6 months before the ad disappeared). Better to go with a numbers matching original car, than to do the swap, be out the extra money, and have it still in your driveway 6 months later... The expensive parts in the conversion will be: new transmission, better rear end, conversion mounts (or swap K-member and get the suspension realigned, and new motor mounts). -D.Idiot

Author:	DadTruck [ Mon Jul 04, 2011 8:54 am ]
Post subject:
I would leave it as a slant, lots of v-8 cars already out there for sale, with today's gas prices the 6 offers mileage one can live with and the potential for performance.

Author:	64 Convert [ Mon Jul 04, 2011 9:33 am ]
Post subject:
I agree with everyone who suggests leaving it stock. You might find a 318 free for the taking, but the other stuff will cost a fortune. Sell it as is, and buy a V8 if that's something you want in the future.

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Author:	SlantSixDan [ Mon Jul 04, 2011 9:50 am ]
Post subject:	Re: engine swap query
Quote: I am assuming that I would get more money for my car if it had a transplant v-8 in it rather than the original 225 Very doubtful -- you'd be swapping in a non-original engine, and in order to do a high enough quality conversion that the non-originality would move down the list of pricing factors, you'd need to change a LOT of parts (upgrade the brakes, upgrade the suspension, upgrade the cooling system, etc.). I can't see any way for you to get more money out of this than you'd put into it. Quote: 1. Am I correct in assuming that the trans on my 225 slant 6 would NOT be a simple bolt on procedure for ANY v-8 and that even if I picked up a 273 I would have to have a new or modified transmission? Yes. There is no modification possible, you'd need a V8 transmission. Quote: 2. Of the 273, 318, 340, and 360, is there a v-8 that is far and away the EASIEST to swap in? 3. Of the 273, 318, 340, and 360, is there a v-8 that is far and away the MOST DIFFICULT to swap in? No. You need different mounts according to the engine you pick. Quote: 4. Of the 273, 318, 340, and 360, is there a v-8 that is far and away the most valued and desirable engine to a potential buyer? The original engine is the most valued and desirable engine to a potential buyer. You are setting yourself up to lose money with this engine swap idea, and I have a feeling you are in for an unpleasant disappointment at the actual selling value of your car. See here.

Author:	eugene [ Tue Jul 05, 2011 6:55 am ]
Post subject:	regarding the current engine...
The reason I was asking is that I have come across some very cheap deals on small block Mopar engines lately. It does not sound like that is a terribly desirable idea from the feedback I am getting, but let me issue a follow up: If remaining with the stock 225 is a better idea, would I be similarly destroying value if the 225 were rebuilt to get higher compression and higher performance?

Author:	USAJon [ Tue Jul 05, 2011 7:12 am ]
Post subject:
Quote: Eugene, my .02, I think that you will be pressed to break even money-wise on a well-executed V8 swap when all is said and done. You'll spend a lot of money on the little things. You'll need a trans, or trans adapter. My opinion is the 340 is the most desirable engine for a swap for it's relative rarity and performance. The 273 is best if you are trying to clone a factory car. The 360 has the most potential for cubic inches/dollar. I think any V8 swap is about equivalent in effort spent. If you had a 273 donor car, that would be the easiest route. Others will chime in with better information, but that's my cut. the markets not getting any better anytime soon keep your car enjoy it running 440 w/auto trans regularly on eBay $500 now that would be a swap.

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