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Re: 9:1 Compression ratio 440 Camshaft [Re: Mr.Yuck] #1020809 06/29/11 07:21 PM 06/29/11 07:21 PM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	Quote: looks like a decent choice. I went 12.90 in a 67 coronet with a almost 9:1 set-up like yours. I used the summit 488 cam, stock 906 heads, headers, 750DP, RPM intake, 2600 stall and 3.91's, Maybe you could use a steel shim gasket and bring up the compression some? i thought about suggesting that summit cam. i don't think it would be a bad choice.

Re: 9:1 Compression ratio 440 Camshaft [Re: Coke] #1020810 06/30/11 10:43 AM 06/30/11 10:43 AM
Joined: Jan 2003 Posts: 24,562 Brookeville, Md Mr.Yuck Not enough dumb comments...yet
Mr.Yuck Not enough dumb comments...yet Joined: Jan 2003 Posts: 24,562 Brookeville, Md	Quote: Quote: Call 'em...believe me, you won't be disappointed. Prompt and courteous...and very knowledgeable. The other cam looks a touch small....not horrid though, but small for a manual trans cruiser. Well,i will try it...I say this because i,m a lost man out of the E-mails ,i,m very bad speaking English ,more by phone,but i will try it Mr yuck,when i was using the compression calculator i was checking it with the .020 gaskets and the result was 9.31 :1 or so. You�re right,could be another option . Did you Dyno test that Coronet? Regards never dyno'd it. Car weighed 3850 w/ me and gas. Ran Consistant 12.90-99 depending on weather. I'm guessing it was at the 450hp range.

Re: 9:1 Compression ratio 440 Camshaft [Re: Mr.Yuck] #1020811 06/30/11 10:08 PM 06/30/11 10:08 PM
Joined: Jun 2008 Posts: 565 IA L landon1 mopar
landon1 mopar L Joined: Jun 2008 Posts: 565 IA	i heard about the "clatter" associated with the XE cams on this forum when i was building my 440. however, after having it done for almost 2 years now, i still don't hear any noise - sounds about like a stock motor with a little more lope...big deal '71 Satellite Sebring 440

Re: 9:1 Compression ratio 440 Camshaft [Re: landon1] #1020812 06/30/11 10:57 PM 06/30/11 10:57 PM
Joined: Aug 2003 Posts: 777 Washougal,Wa D Dodge super stock
Dodge super stock D Joined: Aug 2003 Posts: 777 Washougal,Wa	My buddy and I both used the XE274H, but I used Mopar lifters and he used Napa lifters. No noise. Stand behind your word

Re: 9:1 Compression ratio 440 Camshaft [Re: Dodge] #1020813 07/12/11 07:59 AM 07/12/11 07:59 AM
Joined: Nov 2004 Posts: 340 Vitoria, Spain C Coke OP enthusiast
Coke OP enthusiast C Joined: Nov 2004 Posts: 340 Vitoria, Spain	Thanks, Then the noise trouble will be only with the lifters.. However,the last week i received a reply from Hughes: Jorge, Your compression ratio is extremely low for aluminum heads. Normally I don�t sell cams for an engine with low compression. We now have our Whiplash cams for low compression engines. They have very good low end and mid-range power, very aggressive idle characteristics, vacuum about 9�-11�. Cam P/N HMC3245BL ? Lifters P/N 5001,Springs P/N 1106. Check the cams out on our web site. http://www.hughesengines.com/Index/produ...mp;partid=25116 Thanks Dave What i did then was to took my time and measure the deck again ,using feeler gauges an a dial indicator with a magnetic base.(I was using a vernier caliper,wich is not so accurate). I noticed that the deck distances went from 0.074" in the 1&2 cyls to 0.068 and 0.065 in other cylinders. Then the comp .ratio will be more around 9.30:1 with a 0.039" gasket. Using a 0.020" gasket it could go between 9.65-9.70:1. I have sent another mail to hughes just for asking them if that cam could be still correct for this engine. thanks again for any input

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