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540 stroker from Mancini #1460751 07/01/13 09:45 AM 07/01/13 09:45 AM
Joined: May 2012 Posts: 69 Fairhope, Alabama B BeeSuper OP member
BeeSuper OP member B Joined: May 2012 Posts: 69 Fairhope, Alabama	Has anyone used this stroker kit? You get the rotating assy for $1999. My stock block has been bored to 4.375, a late model junk yard 440 that was rusted up but all I had to work with. Mancini is the only one that offers this kit, just want to make sure I am not missing something. I am aware of potential core shift, and recommended sonic check but if the cylinders appear to be sound then is there something I am overlooking? Will this kit be good for a street motor? Any advice before I write the check? The details are at the Mancini web site, 540 stroker, 4.375 bore and 4.5" stroke.

Re: 540 stroker from Mancini [Re: BeeSuper] #1460752 07/01/13 11:55 AM 07/01/13 11:55 AM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	I would think it's a good kit. get ARP main studs or better a Hughes crank girdle kit. http://chucker54.stores.yahoo.net/hufiallmobig.html Mancini also has some cap and girdle packages with new caps. next step up in caps and girdle http://www.bcrproducts.com/ Some like to do a half fill of hard block (just to the top of the frost plugs) for a little extra cylinder support. some notching at the bottom of cylinder bores will likely be needed and an external pickup up system. Just my and some ideas.

Re: 540 stroker from Mancini [Re: Dodgem] #1460753 07/01/13 03:53 PM 07/01/13 03:53 PM
Joined: Jan 2008 Posts: 4,255 Canada WO23Coronet master
WO23Coronet master Joined: Jan 2008 Posts: 4,255 Canada	Is this going to be a high RPM deal? I don't think the factory block would like that big of an arm spinning to fast. I know some guys have said on here in the past that that many cubes is a waste on mild heads like an Edelbrock head, but with a 540 and an Edelbrock type head you would have enormous torque and still good HP for a street motor, what type of heads were you thinking?

Re: 540 stroker from Mancini [Re: WO23Coronet] #1460754 07/01/13 04:15 PM 07/01/13 04:15 PM
Joined: May 2012 Posts: 69 Fairhope, Alabama B BeeSuper OP member
BeeSuper OP member B Joined: May 2012 Posts: 69 Fairhope, Alabama	Indy EZ.

Re: 540 stroker from Mancini [Re: BeeSuper] #1460755 07/01/13 05:31 PM 07/01/13 05:31 PM
Joined: Jul 2011 Posts: 180 long island newyork A Abodyjohn88 member
Abodyjohn88 member A Joined: Jul 2011 Posts: 180 long island newyork	I would think you will be better off going with a 500 inch stroker kit instead of the 540 with the stock block,a 4'5 inch crank is huge for a stock block and you may have some clearancing and strength issues. The 500 inch deal will be a relatively easy combo to put together.

Re: 540 stroker from Mancini [Re: Abodyjohn88] #1460756 07/01/13 05:36 PM 07/01/13 05:36 PM
Joined: Jan 2003 Posts: 75,071 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,071 U.S.S.A.	Quote: I would think you will be better off going with a 500 inch stroker kit instead of the 540 with the stock block,a 4'5 inch crank is huge for a stock block and you may have some clearancing and strength issues. The 500 inch deal will be a relatively easy combo to put together. I'm with this, that's a long arm and a lot of torque for a stock block.

Re: 540 stroker from Mancini [Re: JohnRR] #1460757 07/01/13 05:57 PM 07/01/13 05:57 PM
Joined: Feb 2003 Posts: 6,849 F fullmetaljacket master
fullmetaljacket master F Joined: Feb 2003 Posts: 6,849	If I'm correct, Best Machine does all the fine tuning on those kits and short blocks. Good workmanship.

Re: 540 stroker from Mancini [Re: JohnRR] #1460758 07/01/13 05:59 PM 07/01/13 05:59 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Its a STREET engine... pressure will be low and revs will be also for the most part... yes that would be a good street engine.. still will make good torque with low pressure and low rpm.. the stock block will handle it IF it measures ok

Re: 540 stroker from Mancini [Re: MR_P_BODY] #1460759 07/01/13 09:11 PM 07/01/13 09:11 PM
Joined: Aug 2006 Posts: 2,141 junction city oregon V viperblue72 top fuel
viperblue72 top fuel V Joined: Aug 2006 Posts: 2,141 junction city oregon	Mancini also sells a 493 kit with 2.2 journal for $1799, which would require practically no grinding. They also have 505 kits just the same. The 540 kit would be interesting, but probably not necessary and extra cost and troubles of external oiling and that much side loading on an already thin cylinder wall.

Re: 540 stroker from Mancini [Re: fullmetaljacket] #1460760 07/01/13 11:13 PM 07/01/13 11:13 PM
Joined: Jul 2003 Posts: 3,378 Rancho Cordova, CA Exit1965 master
Exit1965 master Joined: Jul 2003 Posts: 3,378 Rancho Cordova, CA	Quote: If I'm correct, Best Machine does all the fine tuning on those kits and short blocks. Good workmanship. Shortblocks? I don't see them on Mancini's website.

Re: 540 stroker from Mancini [Re: Exit1965] #1460761 07/01/13 11:46 PM 07/01/13 11:46 PM
Joined: Feb 2003 Posts: 6,849 F fullmetaljacket master
fullmetaljacket master F Joined: Feb 2003 Posts: 6,849	Last time I was Best, they were building the short blocks for Mancini. 493-512's and 540 if I'm correct. I could be off though.

Re: 540 stroker from Mancini [Re: fullmetaljacket] #1460762 07/02/13 08:02 AM 07/02/13 08:02 AM
Joined: Jun 2005 Posts: 4,041 michigan woods imfixinmopars426 master
imfixinmopars426 master Joined: Jun 2005 Posts: 4,041 michigan woods	don't forget to sonic your block[s]...took a few for my 4.375 kit to find one I liked..180ish on a major thrust was the worst on the block I used(after boring)...these were all 75-76 blocks,

Re: 540 stroker from Mancini [Re: BeeSuper] #1460763 07/02/13 08:27 AM 07/02/13 08:27 AM
Joined: Jan 2003 Posts: 10,011 Frostbitefalls MN (Rocky&Bullw... gregsdart I Live Here
gregsdart I Live Here Joined: Jan 2003 Posts: 10,011 Frostbitefalls MN (Rocky&Bullw...	The 540 kit offers the advantage of lighter pistons, most likely, and for sure less rpm with a wider torque curve, more of it down low where a streeter likes it. I don't see any down side to the longer stroke in a stock block, provided you rev it where it wants to run-low rpm. You should be about as fast as you can be shifting below 6000 to 6200 rpm, and that would be with a VERY big cam. I like your choice. 8..603 156 mph best, 2905 lbs 549, indy 572-13, alky

Re: 540 stroker from Mancini [Re: gregsdart] #1460764 07/02/13 03:40 PM 07/02/13 03:40 PM
Joined: May 2012 Posts: 69 Fairhope, Alabama B BeeSuper OP member
BeeSuper OP member B Joined: May 2012 Posts: 69 Fairhope, Alabama	Thanks. I am gonna talk with Hughes Engines, real helpful guys and with Hensley,also seemed very helpful and knowledgable and get their opinion / perspective. I will be using my stock six pack set up and TTI headers. 4 speed, 4.10 dana (A-12 clone SuperBee) I'm told the intake will hold it back but my machinist warns that it only takes once to over rev that may hurt. Looking into a girdle and even partial hard block but still unsure. This car will be street driven modestly but I just know there may come a time when the excitement of an unexpected bout with a rice burner will have me giving it hell.

Re: 540 stroker from Mancini [Re: BeeSuper] #1460765 07/02/13 03:50 PM 07/02/13 03:50 PM
Joined: Nov 2004 Posts: 3,544 Syracuse,NY CompWedgeEngines master
CompWedgeEngines master Joined: Nov 2004 Posts: 3,544 Syracuse,NY	From what you have posted, you can make MORE than enough power with a smaller efficient motor for what your doing. I am not a fan of putting a 4.500 crank in a stock block. I dont care HOW easy you think your going to be, thats a tough situation for a stock block. A 4.15-4.375 will do plenty. Your money though, just my RIP Monte Smith Your work is a reflection of yourself, autograph it with quality. WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.

Re: 540 stroker from Mancini [Re: BeeSuper] #1460766 07/02/13 03:56 PM 07/02/13 03:56 PM
Joined: Jan 2003 Posts: 5,762 Hot Rod Ridge FastmOp master
FastmOp master Joined: Jan 2003 Posts: 5,762 Hot Rod Ridge	I have a 4.5 crank in my stock block. I run hi 5's low 6's depending on if I'm bracket racing or index racing. Built it 2010. I like the 541 combo. My crank is from 440 source

Re: 540 stroker from Mancini [Re: BeeSuper] #1460767 07/02/13 04:00 PM 07/02/13 04:00 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Thanks. I am gonna talk with Hughes Engines, real helpful guys and with Hensley,also seemed very helpful and knowledgable and get their opinion / perspective. I will be using my stock six pack set up and TTI headers. 4 speed, 4.10 dana (A-12 clone SuperBee) I'm told the intake will hold it back but my machinist warns that it only takes once to over rev that may hurt. Looking into a girdle and even partial hard block but still unsure. This car will be street driven modestly but I just know there may come a time when the excitement of an unexpected bout with a rice burner will have me giving it hell. With a 4 speed and 4.10 gears you dont need that much torque... as some have said you might have a longer engine life if you go with the shorter stroke... unless its super heavy car... first gear might be close to useless

Re: 540 stroker from Mancini [Re: MR_P_BODY] #1460768 07/02/13 04:33 PM 07/02/13 04:33 PM
Joined: Jun 2006 Posts: 5,164 CT GTX MATT master
GTX MATT master Joined: Jun 2006 Posts: 5,164 CT	Is anyone managing to run a 4.5 inch arm with a stock oil pickup? I've heard you can get away with it at 4.375, is it even within the realm of possibility? Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street

Re: 540 stroker from Mancini [Re: FastmOp] #1460769 07/03/13 12:33 AM 07/03/13 12:33 AM
Joined: Apr 2009 Posts: 3,421 Toronto M mshred master
mshred master M Joined: Apr 2009 Posts: 3,421 Toronto	Quote: I have a 4.5 crank in my stock block. I run hi 5's low 6's depending on if I'm bracket racing or index racing. Built it 2010. I like the 541 combo. My crank is from 440 source Any hard block or a girdle? What rpms do you turn?

Re: 540 stroker from Mancini [Re: mshred] #1460770 07/03/13 01:10 AM 07/03/13 01:10 AM
Joined: Jan 2003 Posts: 10,011 Frostbitefalls MN (Rocky&Bullw... gregsdart I Live Here
gregsdart I Live Here Joined: Jan 2003 Posts: 10,011 Frostbitefalls MN (Rocky&Bullw...	With a Six Pack intake your motor may be all done at 5200 rpm? That more than offsets the longer stroke, and I can understand some not liking that long of an arm in a stock block, but before saying it is not the right way to go, I would really like to see a stress analysis done using all the right numbers between the possible choices. I am willing to bet that there is less stress on a 4.50 stroke 7.10 rod motor using those heads and the right rpm, than there is with a 4.15 stroke motor with a bit heavier piston, along with attending higher rpm before the motor runs out of cylinder head flow. I have run a 4.5 stroke stock block combo, and with iron heads flowing about 280 cfm. It liked a shift point of 5700 rpm, and that was with a hogged out tunnelram and twin 800cfm holleys. It made decent power for what I put in it, and other than some cap walk, wasn't a problem till the crank broke. For a bigger head, I would agree that it would be pushing it. A 440-1 or similar head with a matching intake system would be walking on thin ice. But I have a friend that races that package, running low nines in a 3000 lb car on a regular basis. 8..603 156 mph best, 2905 lbs 549, indy 572-13, alky

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