427 MMS C5R Blocked Reliability Update

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Nov 18, 2002 | 06:18 PM

pedaltothemetal

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From: Monterey Park, CA

427 MMS C5R Blocked Reliability Update

Since 9/13 have put on 4000 miles without any problems or SES lights.
Passed California emissions too!
Also great gas milage. 21 mpg on a yesterday's 250 mile daytrip!
For you guys afraid to build a daily driver big bore. Go for it! <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Leo
1998 Z28 MMS 427 C5R BLOCKED A4

[ November 18, 2002, 08:07 PM: Message edited by: pedaltothemetal ]

Nov 18, 2002 | 06:47 PM

99WhiteSS

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From: Chesapeake, VA

Re: 427 MMS C5R Blocked Reliability Update

Does this car have the C5R heads and a custom intake or just the C5R block?

Nov 18, 2002 | 07:28 PM

Chicago Crew UnderBoss

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Re: 427 MMS C5R Blocked Reliability Update

Thats great! What did that beast dyno at? At et time slips yet? If yes, what times and traps?

MTI 427 Roadster <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Nov 18, 2002 | 07:30 PM

xp3nd4bl3

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From: Murrieta

Re: 427 MMS C5R Blocked Reliability Update

Good news! Sounds like a much better solution than the bored out stock blocks that have been giving people so much trouble.

Nov 18, 2002 | 07:34 PM

pedaltothemetal

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From: Monterey Park, CA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by 99WhiteSS:
Does this car have the C5R heads and a custom intake or just the C5R block?<hr /></blockquote>Hi,
Just the block with MMS stage 3 heads, and LS6 intake.

Leo

Nov 18, 2002 | 07:59 PM

pedaltothemetal

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From: Monterey Park, CA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by MTI 427 C5 Roadster:
Thats great! What did that beast dyno at? At et time slips yet? If yes, what times and traps?

MTI 427 Roadster <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <hr /></blockquote>442RWHP/473RWT
20 passes on Nitto 315DRs. Best is around 12.6 117mph with the ASR on. ASR cuts out the engine right after the 60ft, and starts up again. Will probably do 120mph with ET Streets with the ASR off. However on a freeway roll, I leave everyone like they were standing still with cars that I used to walk with my stock engine.

Leo

Nov 18, 2002 | 08:03 PM

pedaltothemetal

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From: Monterey Park, CA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by MicahJam:
Good news! Sounds like a much better solution than the bored out stock blocks that have been giving people so much trouble.<hr /></blockquote>C5Rs finished first at the 24hrs of LeMans. Can't ask for anything better than that! If GM were to build a 427ci sleeved motor, I'm sure they would use the C5R block. I just built mine as GM would have built it.

Leo

[ November 19, 2002, 01:19 AM: Message edited by: pedaltothemetal ]

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Nov 19, 2002 | 12:07 AM

Quickin

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From: Ft. Lauderdale, FL, USA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by pedaltothemetal:
 <blockquote>quote:<hr />Originally posted by MTI 427 C5 Roadster:
Thats great! What did that beast dyno at? At et time slips yet? If yes, what times and traps?

MTI 427 Roadster <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <hr /></blockquote>442RWHP/473RWT
20 passes on Nitto 315DRs. Best is around 12.6 117mph with the ASR on. ASR cuts out the engine right after the 60ft, and starts up again. Will probably do 120mph with ET Streets with the ASR off. However on a freeway roll, I leave everyone like they were standing still with cars that I used to walk with my stock engine.

Leo<hr /></blockquote>Hey buddy,

Great to hear everythings running good. You should be able to run low 11's with ET Streets, right?
OH, and pinch me I must be dreaming, my car should be done this Friday. Norris Motorsports installed everything in my sig.
I'll let you know how things are next week. I'm dying to see what my dyno #'s are gonna be.

Lyle

[ November 19, 2002, 12:15 AM: Message edited by: Quickin ]

Nov 19, 2002 | 12:27 AM

#10

pedaltothemetal

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From: Monterey Park, CA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by Quickin:
[QUOTE]
Hey buddy,

Great to hear everythings running good. You should be able to run low 11's with ET Streets, right?
OH, and pinch me I must be dreaming, my car should be done this Friday. Norris Motorsports installed everything in my sig.
I'll let you know how things are next week. I'm dying to see what my dyno #'s are gonna be.

Lyle<hr /></blockquote>Hi Lyle,
You'll love it!
Don't ever give up the overdrive. There is so much torque in these engines, you can easily pass anyone with the converter locked using gentle throttle with no downshifting. I ran with some buds to Vegas, and they told me they couldn't keep up with their LS1 M6's without much downshifting especially climbing hills at high speeds and passing. All the way to Vegas I never had to stab it to downshift ! Unbelievable!
I'm sure it will do low 11's with a good 60 ft. I'm happy just spinning in the 12's cause I don't have a cage, and never will!

Leo

[ November 19, 2002, 12:34 AM: Message edited by: pedaltothemetal ]

Nov 19, 2002 | 12:52 AM

#11

American Muscle

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From: Martinez, CA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by pedaltothemetal:
Since 9/13 have put on 4000 miles without any problems or SES lights.
Passed California emissions too!
Also great gas milage. 21 mpg on a yesterday's 250 mile daytrip!
For you guys afraid to build a daily driver big bore. Go for it! <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Leo
1998 Z28 MMS 427 C5R BLOCKED A4<hr /></blockquote>Wow, how did you get your car to pass Ca emmisions? What size cam are you running?

Thanks <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Nov 19, 2002 | 01:06 AM

#12

pedaltothemetal

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From: Monterey Park, CA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by American Muscle:
[QUOTE]
Wow, how did you get your car to pass Ca emmisions? What size cam are you running?

Thanks <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> <hr /></blockquote>MMS 224 cam.
SLP LTs with SLP Y pipe with cats, and MMS custom tuning! I know the SLP is suppose to NOT pass visuals. But most techs just check for cats, and don't care what they are attached to.
I know it's really cool for a big bore stroker strip car to run 9's. I think it's equally cool for a big bore stroker street car to pass emissions! <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" /> One built to go as fast as it can, and the other to run as clean as it can!

Leo

[ November 19, 2002, 01:23 AM: Message edited by: pedaltothemetal ]

Nov 19, 2002 | 03:07 AM

#13

Quickin

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From: Ft. Lauderdale, FL, USA

Re: 427 MMS C5R Blocked Reliability Update

pedaltothemetal,

Yeah, I have no interest in a roll cage either. This car is just going to be street monster. I plan to take it to the track after break-in just once, a friend is letting me borrow some 15" ET Streets. I'll probably get kicked out after my 2nd low 11, MAYBE a 10 if I'm lucky <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

When you say you have the MMS 224 cam, does that mean it's a 224/224? Because I have the 244/244 in mine. I hope the idle will be nice and smooth.
Later,

Lyle

[ November 19, 2002, 03:07 AM: Message edited by: Quickin ]

Nov 19, 2002 | 11:59 AM

#14

pedaltothemetal

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From: Monterey Park, CA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by Quickin:
pedaltothemetal,

Yeah, I have no interest in a roll cage either. This car is just going to be street monster. I plan to take it to the track after break-in just once, a friend is letting me borrow some 15" ET Streets. I'll probably get kicked out after my 2nd low 11, MAYBE a 10 if I'm lucky <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

When you say you have the MMS 224 cam, does that mean it's a 224/224? Because I have the 244/244 in mine. I hope the idle will be nice and smooth.
Later,

Lyle<hr /></blockquote>Hi Lyle,
Yes that's the one. To be exact it is the:
MMS VERSION 3 of the 224/224 duration, .566" lift, 114LS.
This cam was chosen specifically to pass California emissions which it did. Yours will rev much higher and make much more power, but I can't have that in California and pass emissions. Wish I could though. Anyways torque is what makes it fun driving on the streets. Not sure how your idle will be. But the 224/224 I have idles just like stock. The exhaust rumble which will make you jump when I start it up is not though. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Leo

Nov 19, 2002 | 05:29 PM

#15

Quickin

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From: Ft. Lauderdale, FL, USA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by pedaltothemetal:
 <blockquote>quote:<hr />Originally posted by Quickin:
pedaltothemetal,

Yeah, I have no interest in a roll cage either. This car is just going to be street monster. I plan to take it to the track after break-in just once, a friend is letting me borrow some 15" ET Streets. I'll probably get kicked out after my 2nd low 11, MAYBE a 10 if I'm lucky <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

When you say you have the MMS 224 cam, does that mean it's a 224/224? Because I have the 244/244 in mine. I hope the idle will be nice and smooth.
Later,

Lyle<hr /></blockquote>Hi Lyle,
Yes that's the one. To be exact it is the:
MMS VERSION 3 of the 224/224 duration, .566" lift, 114LS.
This cam was chosen specifically to pass California emissions which it did. Yours will rev much higher and make much more power, but I can't have that in California and pass emissions. Wish I could though. Anyways torque is what makes it fun driving on the streets. Not sure how your idle will be. But the 224/224 I have idles just like stock. The exhaust rumble which will make you jump when I start it up is not though. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Leo<hr /></blockquote>Now you have me wondering. I hope like hell it doesn't idle like crap. I was told by Nick it should idle close to stock, I hope he's right.
If not, out it comes and in with a smoother one. maybe since I have more cubes it will be smooth, I don't know. I'll find out in a few more days.

Later.

Nov 19, 2002 | 05:30 PM

#16

Quickin

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From: Ft. Lauderdale, FL, USA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by pedaltothemetal:
 <blockquote>quote:<hr />Originally posted by Quickin:
pedaltothemetal,

Yeah, I have no interest in a roll cage either. This car is just going to be street monster. I plan to take it to the track after break-in just once, a friend is letting me borrow some 15" ET Streets. I'll probably get kicked out after my 2nd low 11, MAYBE a 10 if I'm lucky <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

When you say you have the MMS 224 cam, does that mean it's a 224/224? Because I have the 244/244 in mine. I hope the idle will be nice and smooth.
Later,

Lyle<hr /></blockquote>Hi Lyle,
Yes that's the one. To be exact it is the:
MMS VERSION 3 of the 224/224 duration, .566" lift, 114LS.
This cam was chosen specifically to pass California emissions which it did. Yours will rev much higher and make much more power, but I can't have that in California and pass emissions. Wish I could though. Anyways torque is what makes it fun driving on the streets. Not sure how your idle will be. But the 224/224 I have idles just like stock. The exhaust rumble which will make you jump when I start it up is not though. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Leo<hr /></blockquote>Now you have me wondering. I hope like hell it doesn't idle like crap. I was told by Nick it should idle close to stock, I hope he's right.
If not, out it comes and in with a smoother one. maybe since I have more cubes it will be smooth, I don't know. I'll find out in a few more days.

Later.

Nov 19, 2002 | 05:38 PM

#17

383ss

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From: Kansas City, KS

Re: 427 MMS C5R Blocked Reliability Update

my 224/224 in my 382 stroker was almost a stock idle. VERY TAME. yours will be even tamer with the bigger cubes.

Personally I think you could have probably went with something like a 229/229 and still idled close to stock, but to each his own.

a BAD *** daily driver <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Nov 19, 2002 | 05:59 PM

#18

Quickin

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From: Ft. Lauderdale, FL, USA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by 383ss:
my 224/224 in my 382 stroker was almost a stock idle. VERY TAME. yours will be even tamer with the bigger cubes.

Personally I think you could have probably went with something like a 229/229 and still idled close to stock, but to each his own.

a BAD *** daily driver <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <hr /></blockquote>How do you think my 436cid will idle with the 244/244?

Nov 19, 2002 | 11:51 PM

#19

ynneK

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From: oregon

Re: 427 MMS C5R Blocked Reliability Update

pedaltothemedal,

what ramps are those?

just wondering, what valve springs did you use in your combo?

nice car.. thats exactly how I want my car to be set up...

Nov 20, 2002 | 12:38 AM

#20

pedaltothemetal

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From: Monterey Park, CA

Re: 427 MMS C5R Blocked Reliability Update

<blockquote>quote:<hr />Originally posted by ynneK:
pedaltothemedal,

what ramps are those?

just wondering, what valve springs did you use in your combo?

nice car.. thats exactly how I want my car to be set up...<hr /></blockquote>It's a kwiklift autoramp.
http://www.kwiklift.com/index.htm
I have the REV-1116 with REV Titanium retainers.

Good luck, you will enjoy the torque!

Leo

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