LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Fleetwood LT1 question

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Old Nov 8, 2005 | 08:28 PM
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85MonteCarloSS's Avatar
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Default Fleetwood LT1 question

The only difference that I know between an Fbody LT1 and a Fleetwood LT1 is that it has cast iron heads. Do you think they are decent engines or do you think they are garbage? I am wondering because I have found a fleetwood with one for cheap and I plan to put a LT1 in my car by next July. Opinions anyone?
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Old Nov 8, 2005 | 10:58 PM
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Besides cast iron heads they have a different cam, and I do believe the accessory layout is a little different. Power Rating from factory is 260hp and 330ft lbs of tq.

Matt
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Old Nov 9, 2005 | 09:01 AM
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If you're putting the motor in your Monte, I imagine the Fleetwood cam would be more suited to your car considering its weight (I imagine it to be heavier than an F body). Otherwise the block and all the internals are pretty much the same. If it were me, I wouldn't be able to swap it without modifying it so you can always improve it with heads and cam. As far as junk goes, just because it came out of a Fleetwood doesn't make it junk. It might even be in better shape cuz grandma probably never spun it to 5500+. I would say the accessories from your 305 should bolt up to the LT1.
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Old Nov 9, 2005 | 10:15 AM
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Originally Posted by dhdenney
If you're putting the motor in your Monte, I imagine the Fleetwood cam would be more suited to your car considering its weight (I imagine it to be heavier than an F body). Otherwise the block and all the internals are pretty much the same. If it were me, I wouldn't be able to swap it without modifying it so you can always improve it with heads and cam. As far as junk goes, just because it came out of a Fleetwood doesn't make it junk. It might even be in better shape cuz grandma probably never spun it to 5500+. I would say the accessories from your 305 should bolt up to the LT1.
Yeah. The LT1s in the B-body and D-body (fleetwood) are redlined at 5500rpm so they don't see a lot of high rpm use from Grandma. I do believe the D-body weighs in at around 4900lbs.
Matt
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Old Nov 9, 2005 | 04:40 PM
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I run a carb conversioned/ cam swapped 1995 Fleetwood motor in a 1986 Camaro and have to say that for the simplicity of it, I am impressed.
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Old Nov 10, 2005 | 01:09 AM
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you're better off with the f-body accessory bracket as most (all I've ever seen / done) clear the g-body frame & let the belt be changed, whereas the b-body one is just a tiny bit closer to the frame rail with the AC pulley.

Other than that, give it a little bit of extra cam and go with the iron LT1. The heads flow slightly better. Upgrade later.
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