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Old 06-12-2009, 06:07 PM
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262 sbc crank

i been thinking of using a crank from a 262 V8 used for like 3 years in monza and nova has a 3.10 stroke close to the old 283 that was 3.00 stroke, and but it in a 350 block large journal and use 302 sbc pistons, but not sure if any one makes a flat top for the 302 as all i find is domed pistons, and being the 262 has .10 more stroke would need machine tops of pistons down, and bore it out 0.040 so be a 4.040 bore with a 3.10 stroke and using the math = 3.14 X 4.040 X 3.10 X 8 = 314.6 and round it off comes out to be a 315 cub. in. any thoughts? and use a set tune port 350 heads and intake, with a mega squirt ECU. with about a 460 lift cam and about 280 duration, with about 110 or 112 lobe separation and put it in my 1986 GMC caballaro with a 200r4 tranny and a 2,000 to 2,200 stall torque, with 3.42 posi rear.

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Old 06-12-2009, 06:25 PM
How fast is fast enough?
 
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That's a lot of work to go really slow... It would be easier to just get a running Vortec 5.7 sbc and remove 4 plug wires- milage and power will be about the same.

If you want a short stroke just go with a 327, you'll be dollars and sense ahead.
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Old 06-12-2009, 06:30 PM
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already have (2) 327 one large and small journal want a 283, but hard to find, had one 283 was the engine to beat around town could pull front wheels in first and secound in a 1956 chevy full steel car! ate my fair share of strokers with that lil 283 was only bored .040 over from stock and used 305 heads cut out for 1.94 valves soild lifter cam 510 lift. and a stock cast iron intake port matched with holley spread bore carb. but i'm building the Caballaro for my wife her lil truck! also nephews a machinest and machine works free, so only be pistons cost, just something to dare to be diffrent!

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Old 06-12-2009, 06:35 PM
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You wouldn't need to shave the top of the pistons. You could use 400 rods and a thicker head gasket and maybe get by. But why you still wont have a 283. Find a good 400 block and put a stroker in it way more power.
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Old 06-12-2009, 06:37 PM
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if motor was for me yes i build another 427 sbc and i never liked 400 rods to short!
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Old 06-12-2009, 06:48 PM
How fast is fast enough?
 
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Well I still say its a silly idea, but if you just want to be different then do it. You'll lower the value of the car though and put more money and time into it in the process.

You could build a 302 LT1, that would be different and can be built using factory parts. It'd be easier, cheaper, and more powerful. I just don't see much reasoning in pursuing that boreXstroke dimension unless you have to meet a CI restriction.
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Old 06-12-2009, 06:53 PM
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ok what i need build a 302 LT1 i can get a 350 LT1 out old cop car missing throttle body and injector for $150.
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Old 06-12-2009, 07:19 PM
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Quote:
Originally Posted by rachet ralph
had one 283 was the engine to beat around town could pull front wheels in first and secound in a 1956 chevy full steel car! ate my fair share of strokers with that lil 283 was only bored .040 over from stock and used 305 heads cut out for 1.94 valves soild lifter cam 510 lift. and a stock cast iron intake port matched with holley spread bore carb.
Wrong place for this post- it belongs HERE. Or maybe HERE. LOL
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Old 06-12-2009, 07:44 PM
How fast is fast enough?
 
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Actaully I knew a guy that could pull them with a 283, he used the rear end from a tow truck though (really steep gearing) and gutted the whole car.

To make a 302 LT1 you need to cross a 4.8L V8 and a 5.7L LT1, and use 302 pistons.
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Old 06-12-2009, 09:40 PM
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Quote:
Originally Posted by ap72
Actaully I knew a guy that could pull them with a 283,
Which means what? I "pulled the wheels" in a ****ing Jimmy wrecker. At 11 years old. Only thing is- that's a true story.
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Old 06-12-2009, 09:49 PM
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to bad you live so far away I have a 283 in the garage that has 2000 miles on a rebuild but I don't want it anymore.
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Old 06-12-2009, 10:42 PM
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ROFL Cobalt! You said my words exactly! lol. Pulled the wheels, hmmm, another wheelie popper on the street no less.
So lets see, you want to design a engine with a 262 crank and a 4 inch bore and do what? Just so you know, when you pull up beside a larger small block you`ll get your doors blown off. The old sayings apply again and they are:
You can`t beat cubic inches.
There`s no replacement for displacement.
Horsepower sells cars, torque wins races.
So the bottom line is, why spend more for less engine?
And by the way, thanks Cobalt, I`m honored you mentioned my post for reference of where this thread should be lol.
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Old 06-12-2009, 10:43 PM
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LOL I agree 100%
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Old 06-13-2009, 05:39 AM
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this is a engine to be in my wifes daily driver
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Old 06-13-2009, 07:57 AM
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power is not the sole reason to build an engine. SOme people like to be different and I understand that, I just don't think that running a 3.10" crank justifies the headache in this sitaution. A 302LT1 is a one off that is MUCH easier to piece together with factory parts. Another option is something like the 348 build in CHP, or maye an inline 6 or a 400ci sbc on a 350 block. Those are all unique yet have other merit as well.

Just because you have a 3.10" crank doesn't mean its worth anything or that you should use it. If you want to make something out of it weld it up to make a table for your garage- it'll be a conversation piece for sure.
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