EricJB Posted March 11, 2013 Report Share Posted March 11, 2013 Same as Zcar parts. I think their name is motorsports auto. Quote Link to comment
banzai510(hainz) Posted March 11, 2013 Report Share Posted March 11, 2013 What I have found that 160 is very close what is needed on a new cam. Regrinds will be about 190 or above thickness Baz at Datsport has lash pads that are counter sunk like the stock pads so you can seat them in the stock retainers and not worry about them falling out. if you know the size you need. stock lash pads I think are .120 Quote Link to comment
73DATSON Posted March 11, 2013 Author Report Share Posted March 11, 2013 I don't know what I need??? I have a web cam with a 450 lift. I was told I can use the stock retainers? Quote Link to comment
banzai510(hainz) Posted March 11, 2013 Report Share Posted March 11, 2013 yes you can get away with 160 but I thinks its getting close as the new after market pad are not counter sunk on the bottom and most of the pad is above the retainer and thus can fall out of ther valve lash is too loose. makes more noise as it rocks abit. Taller retainer the pads fits fluch and is nice and secure in the retainer. Quote Link to comment
Sealik Posted March 11, 2013 Report Share Posted March 11, 2013 'You' could run up to .180 pad in a stock retainer....done it.....<...6500RPM Just make sure the valve lash is set correctly The stock lash pad is about .165 thick The recess is about .069....sooooo...actual 'lift' is around .096 EDIT Eventually I bought some 150-180 retainers though..... for my .180 and .190 pads Quote Link to comment
73DATSON Posted March 11, 2013 Author Report Share Posted March 11, 2013 Great more to look for:-((( its bad enough I don't have time.... Now I have to you look for stuff... Quote Link to comment
73DATSON Posted March 11, 2013 Author Report Share Posted March 11, 2013 'You' could run up to .180 pad in a stock retainer....done it.....<...6500RPMJust make sure the valve lash is set correctly The stock lash pad is about .165 thick The recess is about .069....sooooo...actual 'lift' is around .096 Hey THX. I don't anything about these setup??? Just going with infor from you guys.:-))) Quote Link to comment
Sealik Posted March 11, 2013 Report Share Posted March 11, 2013 I was concerned about running the 180s in the stock retainer....but....after i talked to a guy at Specialty Engineering who builds Datsun motors for racing I was reassured it was okay. That said.....a taller retainer is obviously better than a stock one. You should be fine. Throw in those .150s and do a wipe pattern on all the rockers. Quote Link to comment
73DATSON Posted March 11, 2013 Author Report Share Posted March 11, 2013 I was concerned about running the 180s in the stock retainer....but....after i talked to a guy at Specialty Engineering who builds Datsun motors for racing I was reassured it was okay.That said.....a taller retainer is obviously better than a stock one. You should be fine. Throw in those .150s and do a wipe pattern on all the rockers. THX. I will soon . So busy with work... Quote Link to comment
EricJB Posted March 11, 2013 Report Share Posted March 11, 2013 I don't know what I need??? I have a web cam with a 450 lift. I was told I can use the stock retainers? There are a lot of variables. If the valve seats have been ground many times, the valve stem will be higher. (thinner pads) If you have cam tower spacers from shaving the head, the pads will be thicker. The base circle of the cam gets ground down on a regrind, making them thicker yet. The pads that came with my cam from Isky were close on the exhaust, but not the intake. Quote Link to comment
Sealik Posted March 11, 2013 Report Share Posted March 11, 2013 There are a lot of variables. If the valve seats have been ground many times, the valve stem will be higher. (thinner pads) If you have cam tower spacers from shaving the head, the pads will be thicker. The base circle of the cam gets ground down on a regrind, making them thicker yet. The pads that came with my cam from Isky were close on the exhaust, but not the intake. Yes....and it sucks when you get these "variables' after the head was rebuilt from a so called 'machinist' Believe there was up to .040" difference in my stem heights.... :blink: Quote Link to comment
EricJB Posted March 12, 2013 Report Share Posted March 12, 2013 Yes....and it sucks when you get these "variables' after the head was rebuilt from a so called 'machinist'Believe there was up to .040" difference in my stem heights.... :blink: My SI intake valves were shorter than the exhaust valves. Listed that way on the website. Dont know why. Quote Link to comment
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