help asap!! 228R & pushrods
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help asap!! 228R & pushrods Ok guys, so the car is running but it's making a lot of tapping noises due to the fact my pushrods are way to short.
Im running a 228R and it's got the 7.350 PR's that came with the motor from speed inc in it. Its VERY noisy and it has got to be quieted down and the car is 800 miles from me so I can't check the length so I need some help.
I know TSP reccomends a 7.4 length but the 228R has a slightly smaller base circle so if I use a 7.425 vs the 7.4 will I **** up my clearance or cause the rocker tip to roll off?
I've gotta order these and have them installed before the 18th (date I go get the car) so time is a factor
Thanks
Im running a 228R and it's got the 7.350 PR's that came with the motor from speed inc in it. Its VERY noisy and it has got to be quieted down and the car is 800 miles from me so I can't check the length so I need some help.
I know TSP reccomends a 7.4 length but the 228R has a slightly smaller base circle so if I use a 7.425 vs the 7.4 will I **** up my clearance or cause the rocker tip to roll off?
I've gotta order these and have them installed before the 18th (date I go get the car) so time is a factor
Thanks
7.4 is stock length. even thoe tsp says you can used them with there cams you can. its just that because the basecircle is smaller some like to to to a longer pushrod but some use 7.4
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Thread Starter
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From: Indianapolis
yea im staying here for good. If I stayed with my parents any longer or in fayettenam any longer I was gonna kill them or myself. whichever would have came first.
But yea the car has been nothing but a pain in the damn *** since day 1 it had best be worth it all. I'll be in town the 18th to pick up the car, you gonna be available for maybe a quick cruise?
But yea the car has been nothing but a pain in the damn *** since day 1 it had best be worth it all. I'll be in town the 18th to pick up the car, you gonna be available for maybe a quick cruise?
stock heads and gaskets here with the 228R and ive got some noise but no problems so far with the 7.4's i'll change em eventually when i get some heads. I think my stock cam measured 1.550 and my 228R measured 1.450 so thats calling for a 7.45 pushrod not the 7.4 they recommend!!!!! so instead of having .080 lifter preload i only have .030 and i think that in high rpm that wouldnt allow the valve to open fully, but i dont know
Last edited by regency; Jul 10, 2008 at 04:01 PM.
Thread Starter
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From: Indianapolis
Thread Starter
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Joined: Mar 2006
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From: Indianapolis
I think my stock cam measured 1.550 and my 228R measured 1.450 so thats calling for a 7.45 pushrod not the 7.4 they recommend!!!!! so instead of having .080 lifter preload i only have .030 and i think that in high rpm that wouldnt allow the valve to open fully, but i dont know
true but what about the valvetrain geometry. thats what I understood to be the reasoning that the stock is the recommended one since it has a little bit more noise but keeps everything in alignment better?
Thread Starter
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im still in indianapolis im here for good. Friday is the big day my grandpa got the pushrods from speed inc friday so teddy should put those in monday and decide whether or not to replace the ebarings in the rear end before we depart on a 700 miles journey
Joined: Aug 2007
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From: Turnin' Wrenches Infractions: 005
stock heads and gaskets here with the 228R and ive got some noise but no problems so far with the 7.4's i'll change em eventually when i get some heads. I think my stock cam measured 1.550 and my 228R measured 1.450 so thats calling for a 7.45 pushrod not the 7.4 they recommend!!!!! so instead of having .080 lifter preload i only have .030 and i think that in high rpm that wouldnt allow the valve to open fully, but i dont know
I'm running a 226/226-585/585 cam , so thats real close to your cam specs and when I measured my pushrod length the 7.4's seemed to be a little short so I bought 7.425 pushrods . My engine is VERY quiet as in no ticking like a sewing machine ! Good luck .