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Are they worth the cost what makes them so special , I thought you couldnt do any thing to these crate motors
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yes,..there experience makes the dereference!! an itll be leagle!!!white trash motorsports -
Power
What kinda # s are they making coming from HendrenComment
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You are not allowed to do anything in them but the factory tollerences are much wider than Hendrens are. They correct them to factory specs and get to do things like check lifters for issues and verify clearences. Factory motors are from 375 up to a little over 400. Henderens makes this window MUCH smaller.Comment
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it's really just an insurance policy. sadly, when you buy a gm motor you really don't know what you're getting. there's good ones and bad ones just like any other production machine you buy. not every piece of the engine is inspected and verified at the factory, only a certain percentage. that's just the way production works, otherwise they couldn't sell a motor like that for $5k. Hendrens have the experience and have done the r & d to be able to take what gm has produced and ensure you are getting an engine that will be reliable and tuned for the specific conditions of a dirt late model.
Do you need a match-spec or blueprinted crate engine to be competitive? ABSOLUTELY NOT. I'd trade 50hp for the perfect setup on a given night any day of the week (that's not saying you can necessarily get an extra 50hp out of one of these engines). it's about making the best of what you have unless you can afford to keep a spare engine around. there's been plenty of races won on out-of-the-box engines. i am one that wants to minimize the chance of scattering one half-way through the year.
for a crate engine builder, pursuing research on big hp gains from the engine is counter-productive. It will kill the sport in the long run. i believe hendrens (and many other crate engine builders i'm sure) see this. I have a lot of respect for that kind of integrity.Comment
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I did a considerable amount of reasearch on this very subject. Because I "plan" on being up front and we are known for always being right. If you need me Tuesday I will be at Herdren's.....nuff said.Comment
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power
Well no one answered my question so here we go I know of a rebuild that just happened on a 604 and on e85 it was making 456Hp so come on guys can Hendred do that legal because this Guy did? So what's the #s guys. .........Comment
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You can make a dyno say what you want and I have seen motors dynoed on one and got a number then hooked up to another one and says somthing way off. The only way to do it is to run motors on the same dyno as a comparison. Hendren has a chassis dyno not a regular engine dyno so their numbers are rwhp.Comment
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at the wheels
What is it at the rearwheels any idea just chatting now LOL I help on supersComment
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sounds to me like all they really can do is blue print the engine.I'm told the real hp gain is in the carb and header combo's.Last edited by racin6mod; 04-24-2011, 09:58 AM.Comment
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They have both a chassis and engine dyno...Our engine was dynoed before being shipped on the engine dyno...Comment
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Crate
460 hp is right with the correct fuel ,carb,and headers with a air box and a blueprinted motorComment
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if it is from hendren,..it WILL be legal,... friendship speedway had driver ron parker protested 2 weeks ago with a hendren 604 an NDRA found it legal! its all the little things that add up,..checking lifters,..matching valve springs,..an knowing from there experience what works an what hurts...theres a definite edge there,..is its worth the difference of a new GM motor is the question....white trash motorsportsComment
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Hendrens has said several times, chassis dyno it and if you are at ( I think it was) 385 at the rear wheels race it and worry about rebuilding it later. If you are at a lot less then it should be gone through.Comment
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