Cadillac 4.1 Engine Swap

There were more improvements in 1985 now with finned valve covers. I have an 1984 cadillac coupe deville with a 41 liter engine and i want to swap a 350 small block.

Cadillac Coupe De Ville With A 6 0 L Lsx Engine Swap Depot

Im contemplating to swap a super running 91 49 that I have into a beautiful 82 S10 lwb 2wd I have.

Cadillac 4.1 engine swap. Johns 49 Performance offers quality high performance parts for the Cadillac 49 engine. Bolt down the 41 throttle body to the 49 intake manifold. The decision has been made to put this engine in place of the 41.

Part 1 - A subscriber has asked us to replace the engine in a 1985 cadillac fleetwood brougham which has the 41 engine and put in a chevy 350 engine and t. But right now the current engine is still going strong at 150K miles and I have a feeling the engine may outlast the car. The first improvements were in 1984 41 introduced in 1982 with chrome valve covers very high failure rate.

Caddy had overheating issues in 2001-2002. CADILLAC HT4100 Cadillac strikes again. Ht4100 engine swap.

What parts would be needed mainly for motor mounts. Fits in front to back apps like RWD Fleetwood DeVille or FWD Eldorado Seville block 1618864 1635760 head 556 558 HSC cylinder heads. Yes there are a few known issues with the 41L known as the HT4100 engine.

So far measurements look good. For 1981 Cadillac introduced its infamous V8-6-4 powerplanta would-be technological marvel had the engine worked as designed. Hi guys Im doing a rebuild on a 1982 Cadillac Eldorado Biarritz.

This would be an easier swap though because its still swapping an Olds smallblock for an Olds smallblock. Short video series documenting one of Gregs recent projects. But between 1982 and 1985 the HT4100 was the only gasoline-fueled V8 engine available in a Cadillac.

Use 350 Chevy injectors. I removed and replaced this engine in this Cadillac. Presumably using exhaust manifolds and other peripherals from a 82-84 rwd DeVille that had a 4100 and a 22-4R at.

I actually just drove it today for the first time in 2 years. Approximately 135 - 140 HP is about. In all honesty i would do the 305 because the 350 will be too large for your ECM to react to.

There is no direct replacement for your engine other than another 41 engine. Remembering the Buick 41-liter V6. Engine Info - 49L Cadillac V8 About the swap.

Even the 305 will be but is much more manageable than the 350. What started as just a handful of people with crazy ideas has now turned into a community of 49 swappers. 1984-87 Fiero and non computer controlled HEI One Wire Distributors.

Love these cars and had an 85 before that was probably my favorite vehicle I ever owned. 1987 was last year of HT 4100. 3 bolt crank Not transverse engine.

About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features 2021. Quite simply the 60-liter V8 was engineered to operate on all. Removing a 41L gas V8 from a 1984 Cadillac Sedan Deville and replacing it with a 57L diesel.

Bolt the stainless steel 41 exhaust manifold onto the 49. Transverse engines different block were also introduced. The Big V Engine of Desperate Times.

This can be done with an adjustable fuel pressure regulator. Just the 49 is newer and has more powerWhy would you want to downgrade anyway. 1984 Valve covers were painted black.

Im surely not first to attempt this swap but when I started my first one there was very little info about it on the internet. Transfer all the accessories over to the 49. The caddy ECM will not readily recognize the change in displacement meaning you will have to find a way for more fuel to enter the engine.

Hey bro i just got done finishing my 350 swap on my 82. The following items have been mentioned from owners. Hopefully head gasket is okay.

We put a 95 tbi 350 in it only mods are headers and dual exhuast and it has vortec heads and i can definately feel a difference between that and the 41 that was in there. The 49 engine swap for the Fiero seems to be gaining popularity every day. This time it was an attempt at developing a lighter-weight 41 liter engine called the HT4100.

Im assuming coolant in the oil would have been identified at least once during all my on-time oil changes if this were the case. Block off all the injector ports on the 49. - The engine is low on power.

The plan of action is the following. Anyways I have this 82 and the HT 4100 that was in it was shot I know that these motors were crap in the first place and did a little bit of looking and found rebuild. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators.

If you want the next time I see my mechanic Ill ask him how hard it would be to swap an Olds engine into an Eldorado. Yes they will they are the same engine with different displacements. Find your self a good runinng 84 chevy caprice or impala with a 350 or 305 and transfer all of the parts including the wireing and smog and there you go no more.

Currently available parts are Cadillac 4549 Complete Headers and Dual Exhaust Kit WB-6 Four Barrel Intake Manifolds Cadillac 49 Swap Motor Mounts. I would check valve cover design and or. The reason being is the fuel system.

These parts offer an affordable performance solution and an overall easier Fiero 49 engine swap. Of course anything is possible if you want to fabricate new mounts for the engine and transmission fabricate new exhaust and rewire the engine compartment as well as fabricating custom power steering hoses and ac.

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