dr_jekyll Posted March 1, 2010 Share Posted March 1, 2010 (edited) hey all. im just looking for some knowlage on pushrod engines. i have never worked on or owned a pushrod engine and i have limited knowlage of them i know some of the ls engines can make good power but i have heard they do not like to rev hard and if they are reved too high the rods can bend . the reason i ask is that i have fancyd a big amercan v8 muscle motor (possibly to put in a supra) but i would like to know a bit more about the engines and capabilitys befor i make a decision. Edited March 1, 2010 by dr_jekyll (see edit history) Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted March 1, 2010 Share Posted March 1, 2010 You can buy uprated pushrod and roller followers/rockers so upping the RPM should present no problems, a lot of non professional drag engines still use pushrods;) Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted March 1, 2010 Author Share Posted March 1, 2010 (edited) You can buy uprated pushrod and roller followers/rockers so upping the RPM should present no problems, a lot of non professional drag engines still use pushrods;) thanks, if they are being used as drag engines that cant be bad, i have seen some vids of the z06 that i think use the 5.7 ls6 and they can really shift and make a lovely sound too. the reason these engins have suddenly grabbed my attention is because i saw one out of the car in the flesh and i couldnt belive how small it was making retro fitting in something els verry possible Edited March 2, 2010 by dr_jekyll (see edit history) Quote Link to comment Share on other sites More sharing options...
movistar Posted March 2, 2010 Share Posted March 2, 2010 Great engines imho...used to love adjusting the tappets running :-0 Quote Link to comment Share on other sites More sharing options...
garethr Posted March 2, 2010 Share Posted March 2, 2010 25 years ago the Moto Guzzi 1000cc 2-valve pushrod v-twin (basically a 1950's design and the same cylinder capacity as a 3-litre 6) had an 8000 rpm red line... but why would you be worried about how high a Yank V8 would rev? That's not the point. You'd use a V8 because of its power characteristics, its compact size and light weight (I assume we're talking about an LS-something), its durability, and the price and availability of parts. Oh, and the noise. Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted March 2, 2010 Author Share Posted March 2, 2010 i agree, im not looking fo bike revs , just 6600-7000. this way it will be sueted to a wider range of shorter ratio gearboxes and at 7000rpm the sound is even dirtyer Quote Link to comment Share on other sites More sharing options...
Guest argy911 Posted March 2, 2010 Share Posted March 2, 2010 Mate contact http://www.real steel.co.uk they'll advise you. Our mot testers car reved to 19,000 rpm and run in the 7's. Quote Link to comment Share on other sites More sharing options...
David Reid Posted March 15, 2010 Share Posted March 15, 2010 The real limiting factor on the big V8's is the bottom ends ability to take the revs as it is all cast. Classic Mini engine have pushrods and built ones can rev close to 10K but require trick billet bottom ends. Quote Link to comment Share on other sites More sharing options...
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