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#1
02-10-2014, 11:49 PM
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495 ho
Hi I was wondering what were some thoughts about a 495 stroker stock block filled to bottom of freeze plugs, with a set of 197 ho heads on top , 111 cc should be 9.6 -1 compression ? Will the heads support the engine size ??100% street motor. What cam and intake would compliment a combo like this ?? would be going in a 69 gto m21 3.55 car
sorry posted in race section meant to post in street mods please move |
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#2
02-11-2014, 03:17 AM
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Dave at SD has some pretty strong thoughts on the limited lifespan of a Muncie and 10-bolt rear lasting behind a 4.5" stroker. Dave also recommended the Old Faithful cam on a 114° for the 488 that was built out, and that's the cam we installed. The friend's car hasn't come close to hooking up on the street, but that's probably a good thing or Dave's prediction of a short life span would quickly come true.
While the 4.5" stroker engine turned out good, it killed my desire for building one for myself behind my Muncie - just too much torque right off idle to shred 45 year old parts. I still want to build a 488 for myself, but it will be in front of an auto and a 9" rear with big sticky tires.
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon. |
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#3
02-11-2014, 08:02 AM
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To have 100 % volumetric useage of that motors CID you will need heads that flow well over 300 CFM@28" in whatever lift range your cam will have which may be a tall order!
The being said, even with the 197 heads in stock form with a pure street decent idle cam, that motor should make 450 HP with ease. If this is all the HP your looking for, your set!
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#4
02-11-2014, 10:17 AM
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You will get conflicting reports about the longevity of 4.5" stroke crank in a stock block.
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