355 engine build - Team Camaro Tech
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post #1 of 4 (permalink) Old Jan 12th, 10, 06:04 AM Thread Starter
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355 engine build

I have my engine torn down. Here is what I found. crane cam 302h fireball 2, that has rpm range of 3000-6000 lift of .480 and duration of 228/228. trw pistons 2244p-30 that I think are forged. 461 heads with 194/150 valves. I am running a 355 gear posi in rear end with a 4 speed muncie trans. all botton end looks good. I am trying to get about 400 hp out of this build. Should I change my cam and get my 461 heads rebuilt and enlarged to 2.02/160 valves or get a new cam and new alum heads? I want a nice quick street driver that is fun to drive. Or should I reuse the cam and rebuild the head? Thanks in advance
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post #2 of 4 (permalink) Old Jan 12th, 10, 10:42 AM
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Re: 355 engine build

Go with aluminum heads and go with a roller cam set up, 425 hp, no problem... What kind of compression...

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post #3 of 4 (permalink) Old Jan 12th, 10, 01:00 PM
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Re: 355 engine build


68 Camaro SS 396 - 468 BBC now, M21, 12 bolt 3.73 coded housing but w/ 3.31 gears.
Looking for 68 Camaro with body number NOR 181016
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Last edited by bcm66; Jan 12th, 10 at 09:08 PM. Reason: Rethought my answer
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post #4 of 4 (permalink) Old Jan 25th, 10, 07:29 PM
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Re: 355 engine build

First the "heads"

In the older days when we were very limited to aftermarket stuff and the best production head found other than rare 291/292/492 angle plug heads ware the double hump 461/462--283/327 heads.

Today with the excessive cost of machine work needed to save our trusted Double humps. You can purchase new complete casting that will out perform our trusted lungs with ease.
The GM stock Vortec head Purchased for less than 600.00 a pair loaded will show great improvement.

And many many Aluminum pieces avaialble today that fit every budget.

Second: Cam, as well and great the Crane cams were. With new cam machine sand advanced cad technology a cam change is a must.
The investmet to a rioller cam is HP on a budjet! And with the change of motor oils today and durable investment.

Your HP demands can easy be met. And done with a quality matched build.

Place your budjet, do the build yourself, have a local builder or even a GM Crate engine.


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