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Old 04-24-2012, 07:59 AM
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454 swap advice

I recently bought a donor 454 3500 1ton 1992 Chevy k1500 it runs and drives like new, and doing a full tranny re-build due to the mileage(150k)ish. I have a 1990 Chevy k1500. I'm swapping the engine, tranny, rear end, and transfer case. I'm matching the rear gears with the front gears of the 1500 because I have a lift, and the larger 1 ton diff will not fit. I plan on a COMPLETE re-build. I found a kit on summit for $600-$700. I want to do a moderate head/cam package, I plan on towing maybe a snowmobile trailer here and there, but mostly just cruising around, I don't have any hp goals to meet. I would appreciate opinions! I can answer any questions you have.
Thanks!

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Old 04-24-2012, 08:49 AM
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Do a search on this board, there's a ton of information available. If you have no goals, a stock 454 will drag a snow machine trailer all day long...you need a goal.
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Old 04-24-2012, 09:55 AM
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Yeah, I drive it alot in the winter, it's my primary winter vehicle. I have an ls1 Camaro for the nicer seasons, but I love this truck, I want to mud ur, but still have reliable drivability. But I'll check out some other forums.
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Old 04-24-2012, 01:23 PM
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my actual advice here would be to build up the 3500 not the 1500. the 3500 has the frame and suspension to handle a lot more abuse than the 1500 does.

if you have a mild rebuild in mind then that is pretty much what you should do. you will certainly want to get rid of the factory heads, a simple set of summit, dart, or world cast iron heads would probably be all you would need. and from what i understand most aftermarket head manufactures have taking in to account that the GEN V block had some different coolant passages that caused some issues for people putting aftermarket heads on them, but i believe that aftermarket compainies have corrected this problems and developed heads that are interchangable from Mark IV, GEN V, and Gen VI.

if you are talking about an engine rebuild kit from summit for 600-700.00, then make sure you look into what pistons are in the kit and what compression height the pistons are as most rebuilder kits have shorter compression height pistons in them to account for the possible need to for decking the block, this causes big issues with getting a proper quench area.
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Old 04-24-2012, 02:00 PM
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The 3500 is completely rotted out. That's why I'm swapping. I'll post the link.
http://m.summitracing.com/parts/fem-csmhp790-311
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Old 04-24-2012, 04:17 PM
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gotcha

so what questions do you have

i looked at the rebuild kit and it doesn't mention the manufacturer of the pistons so i would want to know who makes them and what exact part number they are so i could do my own research on them before i bought them.
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Old 04-24-2012, 04:41 PM
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Yeah I'll contact summit and let you know.
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Old 04-24-2012, 04:46 PM
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http://www.summitracing.com/parts/SLP-H110CP30/is the summit page directly for those exact pistons. Going to search the web about them now.
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Old 04-24-2012, 05:16 PM
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those are not typical rebuilder pistons, they are the correct compression height for a standard deck 454bbc. after looking at that kit it doesn't look bad for a mild rebuild.

what's next
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Old 04-24-2012, 05:29 PM
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Just lookin sound for a mild cam/head build. This is the first time building a truck engine haha. Built my ls1 but I had a hp goal for that. I just want a streetable truck that can pull alot, I pull my buddies out of the mud and a snowmobile trailer here and there, but the 305 I have now is a little bit of a wimp it's going to be a huge step up as it is, but I wanted to do a mild build while I'm doing the swap. Save some time.
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Old 04-24-2012, 05:44 PM
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http://www.summitracing.com/parts/SUM-152125/

these heads would be a decent budget fit, especially since the kit you listed has advertised 10.37:1 with a 116.9cc chamber. these heads have a 121cc chamber which that with maybe running a looser quench of say .050-.055 you may get it down to around 9.8:1 (i've not done the math i'm just guestimating here)

as for a cam i would suggest somthing with around 220 at 050, maybe around 270 advertised duration, around .550" and you will want some LSA to help bleed off some of that cylinder pressure, say 112-114LSA.
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Old 04-26-2012, 08:22 AM
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Z, it says you exceeded your limit for private messages
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Old 04-26-2012, 01:39 PM
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Yeah I'll probably just go carb. I found a 850 double pump on eBay for like around 100-200 used, then I'll get a dual 50cc rebuild kit.
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