2 bolt main 383 stroker?
February 16th, 2010, 1:13 PM
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2 bolt main 383 stroker?
The 350 I have is a 2 bolt main. Would it be alright to go ahead with my 383 build? or should I start looking for a 4 bolt?
February 16th, 2010, 3:10 PM
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Haha, I'm sure someone will pipe in and argue with me here, but 4-bolts are overrated.
In the end, it really depends on how you plan to drive it. The 4-bolt does help with high RPM, but if you do your shifting between 5500 and 6200, you'll be just fine with a 2 bolt.
Also, if you really want to just be safe, you can get your 2 bolt splayed at the machine shop since it's already going to be in there for the crank machining for cheaper than what you'll spend finding a factory 4 bolt.
In the end, it really depends on how you plan to drive it. The 4-bolt does help with high RPM, but if you do your shifting between 5500 and 6200, you'll be just fine with a 2 bolt.
Also, if you really want to just be safe, you can get your 2 bolt splayed at the machine shop since it's already going to be in there for the crank machining for cheaper than what you'll spend finding a factory 4 bolt.
February 16th, 2010, 3:33 PM
#3
actually, i agree. doesn't matter what motor, if you do not build it right, won't be reliable. spend the money at a good shop for machine work. splay the caps, have motor balanced, degree cam. this all will payoff in the long run. there are thousands of high horsepower engines running strong with 2 bolt mains. do it right, no worries.
February 16th, 2010, 8:56 PM
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February 17th, 2010, 2:30 AM
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yea that is my plan just as well. get a 2 bolt, splay it. oh yea. you wanna hear how reliable the splay is, www.wrenchrat.com they build twin turbo kits for the gen I 350. they took a 350 block, forged internals, 2 bolt main and splayed it to a 4 bolt. put the motor to a 650 carb, th350 and motor in a chevelle. dyno was 315 hp. slapped the twin turbo on, meth kit, big blow through carb, and 25 pounds of boosted love. that wee motor took that dyno to almost 800 horse. i think 4 bolt splayed is more than reliable as long as the machine work is done well. btw, i really freakin want that turbo kit, i almost thought about just going wild and taking a 10k loan out and gettin it done, but college goes first. lol. well. thats my 10 cents for ya. btwx2, those turbo kits are 5k and built to exceed 1000hp levels.
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February 17th, 2010, 10:13 PM
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Going to scare ya some about slayed caps.When you do the machine work,you have to line hone the block.By doing that you will move the crank up into the block some.That in it's self "could" result in some really weird timing of the cam because of some tolerances have changed in the timing chain.So what do you do??.Well then you buy a gear drive for the cam.Yepper,more expense.Over 20yrs of racing as a backround and dead set against the comic book articles like Hot Rod and alike...........I am tell you a 2 bolt main is more than enough for 99% cases of street use.
Last edited by burticushurticus; February 17th, 2010 at 10:19 PM.
February 18th, 2010, 10:32 AM
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huh... well i just learned more by reading those new posts than the hour i spent in english class. well, better go get the motor list and scratch off splayed caps, instead ill get better rods or pistons.... schweet.