Anyone running 418 cid with boost?
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TECH Junkie
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From: East Brady, Pa
Anyone running 418 cid with boost? I was browsing for a new setup and I came across a 418 offered by canadian performance. It had a 4.1 eagle crank listed. Has anyone ran one of these with boost? I thought I remembered hearing that it's not good to have a longer stroker then bore but I could be wrong.
im supposed to be having my 408 bored out to a 418, however I dont know exactly if its a for sure thing so once I hear back from the motor company I can let you know...
but normally boosted setups Ive seen are either 346, 347, 364, 370, 383's on occasion, 402's and 408s (and 427's)...
but normally boosted setups Ive seen are either 346, 347, 364, 370, 383's on occasion, 402's and 408s (and 427's)...
I know several people that are build L92 block for boost. The stock bore is 4.065 and can get 416 with a 4.00" stroke crank. A little honing to get a 418 would be easy. Shirl Dickey make a 433 using a L92 block overbore to 4.1 using a 4.1 crank. He went with a high compression setup to road race, but there is not reason why one could not be done the same way for boost. According to him, the overbore still left plenty of cylinder wall thickness. I am serious looking at using a L92 block here 
Keith
Keith
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Originally Posted by ls1290
I know several people that are build L92 block for boost. The stock bore is 4.065 and can get 416 with a 4.00" stroke crank. A little honing to get a 418 would be easy. Shirl Dickey make a 433 using a L92 block overbore to 4.1 using a 4.1 crank. He went with a high compression setup to road race, but there is not reason why one could not be done the same way for boost. According to him, the overbore still left plenty of cylinder wall thickness. I am serious looking at using a L92 block here
Keith
Keith
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Originally Posted by SuperZ
from what Ive seen you don't want to go with the 4.100 stroke on a boost or nitrous motor.Its somthing to do with the piston rings and having more blow by.
Originally Posted by GueSS Who
Bigger bore
smaller stroke
Better in every combination.
smaller stroke
Better in every combination.
Originally Posted by Beaflag VonRathburg
I don't agree with the every situation. Do you read about the engine master's challenge? The past few years have been dominated by long stroke / small bore combinations.
Marty
Originally Posted by Ryne @ CMS
alot of the l92 blocks, including one of my own, the sleeves actually sit crooked in the block. then when they are bored the sleeve thicknesses on either side could vary by as much as .020" +. but i had word that some of the newer l92 blocks the sleeves are in straight. just some food for thought
Keith
Originally Posted by Mr.MartyStone
Look at the limits imposed on those engines for RPM requirements. That changes everything! Plus they're just dyno queens, not built for endurance of any sort.
Marty
Marty
