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Author
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Topic: retrofit block for hyfralic rollers lifter
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66 AC COBRA
Nitrous King
Member # 904
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posted
 
 
as the title states
this is on a solid flat tappet lifter block, 351w, unknown year as of right now
wondering how much it will cost, where can it be done, and how much of the engine do i have to dissasemble, the whole thing or just to a short or longblock
since i also have to buy lifters, would it be cheaper to just by linkbar lifters
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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93PONY
Mr. Valve Events
Member # 60
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posted
Lucky for you, it's an early 90's block.
It already has the added material in the lifter galley for the spider hold-down bolts. All you have to do is carefully drill & tap the holes...then install the spider & roller lifters, check/double check everything & get the proper length pushrods.
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4265 | From: Fair Oaks, CA | Registered: Nov 2000
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66 AC COBRA
Nitrous King
Member # 904
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posted
should i dissasemble the block down to nothin so i can have it cleaned thouroughly to make sure all metal shavings are out or just clean all the shavings i can see and change the oil frequently
and when i am done, do u want to degree my cam ![[Big Grin]](biggrin.gif)
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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93PONY
Mr. Valve Events
Member # 60
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posted
Oh, I'll degree your cam. You can count on that!
Truth is it's a bit dangerous to drill & tap with the shortblock assembled. Jim & I talked about it...& I really didn't want to do it. The link-bar lifters are $400. & are a little taller....or at least they are for the 302's....don't know if they're the same ones for the 351.
Anyway, the plan was to get a good shopvac & drill slowly with a well oiled bit. Then flush as much crap out as possible with a few qts of fresh oil.
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4265 | From: Fair Oaks, CA | Registered: Nov 2000
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FasterDamnit
Bad Attitude
Member # 442
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posted
Heavy white grease on bits and slow bit speed.
Posts: 2971 | From: NorCal | Registered: Sep 2001
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Blue Oval
¯
Member # 2548
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posted
Hey if u get the Mustangs PLus catalog it shows u how to do it u will also have to grind the block so u can use those little C lock things
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65 Coupe 306, AFR's
89 Cali. Ed. Saleen "sold"
BAB 89 GT
08 Yamaha R6
Posts: 2345 | From: Sacramento | Registered: Mar 2003
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66 AC COBRA
Nitrous King
Member # 904
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posted
grining block, errrr ![[Mad]](mad.gif)
the link bars are looking better
maybe this will be a future project
can i run some 1.72 roller rockers to get more lift and not change the cam, will i encounter problems if i do that since it is a flat tappent bastard
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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66 AC COBRA
Nitrous King
Member # 904
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posted
dont u have to adjust the valves more with solid lifters, i could be way off but if u do, i am lazy and would hate to have to always be adjustin my valves
drink beer, sleep, and race cars, oh ya girls
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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FasterDamnit
Bad Attitude
Member # 442
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posted
No grinding. It is '90 block ready for rollers except for the lack of holes in the bosses. Have to also find a spider to fit the wider 351.
Posts: 2971 | From: NorCal | Registered: Sep 2001
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66 AC COBRA
Nitrous King
Member # 904
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posted
so jim, do u know how much lifters and spyders will cost, i have some used 5.0 lifters but they have like 110k on them, i really dont think those should be reused
also jim, do u know the compression of that motor
[ May 06, 2003, 04:41 PM: Message edited by: 66 AC COBRA ]
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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FasterDamnit
Bad Attitude
Member # 442
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posted
No idea on cost, just call the dealership. Compression should be 9.3:1 or so.
Posts: 2971 | From: NorCal | Registered: Sep 2001
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66 AC COBRA
Nitrous King
Member # 904
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posted
i was just using the fordmuscle compression calc and it seemed to be higher, is the piston below deck alot or what, huge valve relief, just curious, and how big are the combustion chambers on the heads, sorry for all the questions, i just have been brain storming
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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FasterDamnit
Bad Attitude
Member # 442
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posted
64cc chambers.
stock bore.
Posts: 2971 | From: NorCal | Registered: Sep 2001
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66 AC COBRA
Nitrous King
Member # 904
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posted
when i plug it into the calc i get 10.09-1
i am using 4in bore
3in stroke
64cc chambers
-7 for the valve reliefs
.040 for the gasket compression
is there anything i am missing
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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FasterDamnit
Bad Attitude
Member # 442
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posted
Yeah, I didn't build it am just reporting what I was told. JohnB put it together.
Posts: 2971 | From: NorCal | Registered: Sep 2001
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66 AC COBRA
Nitrous King
Member # 904
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posted
i guess i will pm john b, thanks for ur help
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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FasterDamnit
Bad Attitude
Member # 442
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posted
1. It is a 351, not a 302 so the stroke is wrong.
2. When entering the cc's of the piston eyebrows, use -4.
edit-
using the bigger stroke I get 10.09, too. Not sure about the valve reliefs or piston to deck heaight.
[ May 06, 2003, 05:15 PM: Message edited by: FasterDamnit ]
Posts: 2971 | From: NorCal | Registered: Sep 2001
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66 AC COBRA
Nitrous King
Member # 904
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posted
what should the stroke be
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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castor
¯
Member # 2765
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posted
i heard something about 1.72 rocker arms.
here's my pitch, please bare with me..
BRAND NEW! yes, BRAND NEW set of FMS 1.72 rocker arms!!! how much you ask?!?! this was purchased for 240 bucks but for that one special person out there, yes, this could be you, we are going to SLASH prices!!
170 bucks!
cheers.
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SOLD!!! 7/07
Supercharged 92GT
352rwhp [old blower w/3 1/2lbs]
???rwhp w/S-Trim
2010 Acura MDX Tech/Entertainment
2013 Acura TL SH-AWD
Posts: 1457 | From: San Francisco | Registered: Apr 2003
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66 AC COBRA
Nitrous King
Member # 904
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posted
oops, yeah, i was using 3.5 in my calcs, that was just a typo, and with the 3.5 stroke and 4cc valve reliefs
it come out to 10.45:1
so its even higher, i have a pm into john b so it will be cleared up soon, i am guessing the piston is below deck a bit to drop te compression, or it could be a 10:1 motor, eitehr way it will be mine uuahahaha
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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66 AC COBRA
Nitrous King
Member # 904
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posted
so what do u think this motor will put out in its current form
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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mustanggt5091
All I need is.....
Member # 444
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posted
Jim have you heard from the insurance yet?
And eric, if you want I will sell you my cam with retro fit! You know it already, only 3800 miles! Erson .498/.502 lift with 224/224! Basically an e303 for a 351w! I have all my new stuff coming and dont know what to do with it. When ou come home this weekend we can discuss it over a 6 pack!
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88 GT 357w (SOLD):(
06 Limited Edition R6 !!!!!
Posts: 2353 | From: Fairfield / Santa Rosa , Ca | Registered: Sep 2001
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