Stroked kit on Ebay

ethrjock · November 3rd, 2009, 11:56 PM

What sort of "deal" is this compared to what it might cost retail? Are they good parts?

Ford 4.6 Mustang 302 Supercharger Engine Upgrade Kit B:eBay Motors (item 360202379952 end time Nov-04-09 08:04:47 PST)

Also..from what I have researched on the web a spec stage 3+ clutch is around $400-500 for the s197s and here is a new one for $270.

Saleen 05- Mustang SPEC Stage 3 + Clutch Kit SF463F HT:eBay Motors (item 380173555200 end time Dec-01-09 06:00:38 PST)

ethrjock · November 3rd, 2009, 11:57 PM

From looking at the vendor...they bought out Saleen's old parts.

HBK_2007 · November 4th, 2009, 01:58 AM

i think most strokers run about 2k

07 Boss · November 4th, 2009, 02:00 AM

The one major issue that I would consider is if those pistons are going to fit your engine. You don't know until you tear your engine apart if you can get away with just a good honing or if you are going to have to do a little boring of the cylinders. With that said, if you bore it 20 over then you will not have the right size pistons. Now if you are going to buy a brand new block then you won't have to worry about that. AND if you are going with a new block you should just get a short block with the bottom end all put together for you.

stanglifemike · November 4th, 2009, 08:03 AM

I believe thats the same kit that another memeber on here bought. Looks like a good deal to me, and hopefully your block is still good.

05roush0090 · November 4th, 2009, 04:29 PM

With a 302 kit you will definately have to bore the piston walls. The most you can go with simple honing would be a 298 kit I believe.

usafimj · November 4th, 2009, 10:52 PM

I bought one of those kits about 1.5 months ago. Its a great product. I ended up selling it due to military orders. Wish I could have kept it. Only issue you'll have is bore diameter. Stock is 3.552. Hopefully your block is still fairly new and you can still use your stock block

ethrjock · November 4th, 2009, 11:27 PM

block has 22k miles on it but you never know until you get into the guts of her. I'd hate to spend the cash only to find out my cylinder walls need bored.

Hmmm...

DiMora · November 5th, 2009, 09:18 AM

3.551" is the diameter on those pistons., and they are designed for a bore diameter on your block of 3.554" per the spec sheet on Ebay.

Stock cylinder bore is 3.550 inches (90.2 MM), and stock piston diameters vary based on the "grade" used...and it looks like Ford uses 3 different "grade pistons" but the diameters are the following (all uncoated):

Grade 1 3.5504-3.5499 in
Grade 2 3.551-3.5503 in
Grade 3 3.5515-3.551 in

So, it looks like they allow for a cylinder "cleanup" of .003" to .004".

I am NOT a machinist, but I know that normally when you bore an engine, it is one of the three over-bores:

.010
.020
.030

What I am saying is it looks like those pitons are designed for "stock blocks" with no over-boring. They gain the 302 inch displacement through the piston design and the rods, and maybe the crank...in other words, the "stroke", but not the cylinder bore.

Hope that helps.

stanglifemike · November 5th, 2009, 01:27 PM

Good info Shane!!

ethrjock · November 16th, 2009, 09:33 PM

Thanks diMora. That's what I was looking for. It sounds like a risky purchase. I might be better suited with a kit that's designed for overboring .030.

Casey4s · November 16th, 2009, 09:56 PM

Originally Posted by ethrjock

Thanks diMora. That's what I was looking for. It sounds like a risky purchase. I might be better suited with a kit that's designed for overboring .030.

Ask the vendor if you need to bore the block out. I agree with DiMora I can't see why you would need to bore the block. The3.554 bore by 3.80 storke is 301.5681~ Cu In

05roush0090 · November 17th, 2009, 04:36 PM

Originally Posted by DiMora

3.551" is the diameter on those pistons., and they are designed for a bore diameter on your block of 3.554" per the spec sheet on Ebay.

Stock cylinder bore is 3.550 inches (90.2 MM), and stock piston diameters vary based on the "grade" used...and it looks like Ford uses 3 different "grade pistons" but the diameters are the following (all uncoated):

Grade 1 3.5504-3.5499 in
Grade 2 3.551-3.5503 in
Grade 3 3.5515-3.551 in

So, it looks like they allow for a cylinder "cleanup" of .003" to .004".

I am NOT a machinist, but I know that normally when you bore an engine, it is one of the three over-bores:

.010
.020
.030

What I am saying is it looks like those pitons are designed for "stock blocks" with no over-boring. They gain the 302 inch displacement through the piston design and the rods, and maybe the crank...in other words, the "stroke", but not the cylinder bore.

Hope that helps.

hmmm,,.....interesting. I actually am liking the sound of this kit. How does the piston make up for not boring? Dish type to create more room? Please explain.

Casey4s · November 17th, 2009, 04:56 PM

Originally Posted by 05roush0090

hmmm,,.....interesting. I actually am liking the sound of this kit. How does the piston make up for not boring? Dish type to create more room? Please explain.

The pistons are .004 oversize so you shouldn't need to do anything but a honning for the pistons to fit the block. The pistons are dished to lower compression for a blower application.

jonnieguns · November 17th, 2009, 05:51 PM

I was about to buy it, lol. Sale ended on the 4th.

HBK_2007 · November 18th, 2009, 12:15 PM

Originally Posted by jonnieguns

I was about to buy it, lol. Sale ended on the 4th.

ive seen those alot be4, just keep ur eyes open and ull find another

jonnieguns · November 18th, 2009, 03:38 PM

There's a similar high compression kit advertised as well. Would it be inadvisable to install that kit, and then swap in pistons with more of a dish (for lower compression) when it comes time to go forced induction? Would there be any problems with the new pistons not being set/matched to each cylinder?

DiMora · November 18th, 2009, 03:55 PM

Originally Posted by jonnieguns

There's a similar high compression kit advertised as well. Would it be inadvisable to install that kit, and then swap in pistons with more of a dish (for lower compression) when it comes time to go forced induction? Would there be any problems with the new pistons not being set/matched to each cylinder?

That would be a waste of time...you would have to pull the whole engine again to do that.

The pistons, connecting rods, wrist pins, and crank are all balanced together as a "rotating assembly".

The pistons, wrist pins, and connecting rods are "balanced" by removing material until they all match one another within the desired tolerance. Therefore, each piston / rod / wrist pin is a "matched set".

The crank is then fitted with "bob weights" that are equal to the weight of the 8 piston/wrist pin/connecting rod combos...and then the crank is balanced.

By disassembling and changing pistons, you throw this off - unless you weight match the NEW pistons so that they are equal in their relationship in the same ratio that the original pistons were.

The bottom line is that it is easiest to pick what you want and do it right (and once) the first time.

If you are going to go forced induction (and I don't know why you would not on these cars with their small displacement engine) then just get the correct low comp pistons from the get-go and call it good.

jonnieguns · November 18th, 2009, 04:00 PM

Makes sense, thanks for the insight.

NastyFX4 · November 18th, 2009, 04:51 PM

Just something to add to the conversation... If you're going to be running a 'normal' amount of boost like 8-13 lbs than there is ZERO issue with running a stock or slightly higher compression ratio. I believe our stock motors are 9.8:1. If you're planning on running a lot of boost than it's probably not a bad idea to get the lower compression pistons.

November 3rd, 2009, 11:56 PM	#1
ethrjock Regular 2006 11.62@121 Join Date: May 2008 Location: Douglasville, Ga Posts: 68 iTrader: 0 reviews	Stroked kit on Ebay What sort of "deal" is this compared to what it might cost retail? Are they good parts? Ford 4.6 Mustang 302 Supercharger Engine Upgrade Kit B:eBay Motors (item 360202379952 end time Nov-04-09 08:04:47 PST) Also..from what I have researched on the web a spec stage 3+ clutch is around $400-500 for the s197s and here is a new one for $270. Saleen 05- Mustang SPEC Stage 3 + Clutch Kit SF463F HT:eBay Motors (item 380173555200 end time Dec-01-09 06:00:38 PST) __________________ 06 Paxton HO, 60lb Inj, GT500 pump, 3.16 pulley, BMR LCA Panard Drop Bkt, FRPP spgs, Basssani exhaust, Off X, SLP LLck, 4.10 gear, Weld RT 15x10 rear, 4" ft-MT 28.1 x 12" rear (PB 11.62:1.51 60 ft on 11-21-09 at SDR) Paxton/Vortech Crew Member #4

November 3rd, 2009, 11:57 PM	#2
ethrjock Regular 2006 11.62@121 Join Date: May 2008 Location: Douglasville, Ga Posts: 68 iTrader: 0 reviews	From looking at the vendor...they bought out Saleen's old parts. __________________ 06 Paxton HO, 60lb Inj, GT500 pump, 3.16 pulley, BMR LCA Panard Drop Bkt, FRPP spgs, Basssani exhaust, Off X, SLP LLck, 4.10 gear, Weld RT 15x10 rear, 4" ft-MT 28.1 x 12" rear (PB 11.62:1.51 60 ft on 11-21-09 at SDR) Paxton/Vortech Crew Member #4

November 4th, 2009, 01:58 AM	#3
HBK_2007 Genibus Nitito Canus 2009 Ford Mustang GT Join Date: Jan 2008 Location: Wyoming Posts: 2,832 iTrader: 0 reviews	i think most strokers run about 2k __________________ Red 1996 GT: JLT RAI, Steeda Underdrive pullies, Stewart Waterpump; nothing to brag about Black 2009 45th aniverary edition GT 5 speed: K&N CAI, BBK Twin 62mm Throttle Body, BBK Underdrive Pullies, SLP Loudmouth

November 4th, 2009, 02:00 AM	#4
07 Boss MM Fanatic 2007 Mustang GT Join Date: Nov 2008 Location: Las Vegas Posts: 4,381 iTrader: 3 reviews	The one major issue that I would consider is if those pistons are going to fit your engine. You don't know until you tear your engine apart if you can get away with just a good honing or if you are going to have to do a little boring of the cylinders. With that said, if you bore it 20 over then you will not have the right size pistons. Now if you are going to buy a brand new block then you won't have to worry about that. AND if you are going with a new block you should just get a short block with the bottom end all put together for you. __________________ Roush CAI-Comp NSR's-Pacesetter L/T's and O/R H-pipe-4.10's-PH Driveshaft-PI triple disc 3000-elec H2O-Pro Kit-BMR billet LCA's w/brckts-BMR adj UCA & Panhard-BMR sway bars-Bilsteins-Nitto NT05R DR's & Toyo T1R's-and a bunch of other really cool shit

November 4th, 2009, 08:03 AM	#5
stanglifemike IBEATU 06 GT, 98 GT, & 93 Notch Join Date: Dec 2006 Location: Douglasville, GA Posts: 5,937 iTrader: 0 reviews	I believe thats the same kit that another memeber on here bought. Looks like a good deal to me, and hopefully your block is still good. __________________ 98 GT: some stuff 06 GT: more stuff 93 Notch: 4 cyl at birth, now 5.0 drivetrain and stock exterior and interior= True Sleeper Paxton/Vortech Crew Member #3 FRPP's #1 Dealer Injected Engineering BMR Suspension

November 4th, 2009, 04:29 PM	#6
05roush0090 Enthusiast 2005 Mustang GT Roush Join Date: Mar 2008 Location: Indiana Posts: 735 iTrader: 0 reviews	With a 302 kit you will definately have to bore the piston walls. The most you can go with simple honing would be a 298 kit I believe. __________________ 2005 BLACK Mustang GT Roush #05-0090 DOB manifold, m122 SC, gt500 TB, 52lbers, KB BAP, AFCO HE,Brisk plugs, Mac Lt's, Off road x, Roush TVS CAI, Detroit rocker sc grind cams, Brenspeed 93 tune, 10 psi (2.875" pulley) 470rwhp-419ftlbs sae

November 4th, 2009, 10:52 PM	#7
usafimj I Post Entirely Way Too Much 2007 Ford Mustang GT 12.847 @ 114.12mph Join Date: Sep 2007 Location: Oklahoma City, Ok. Posts: 5,086 iTrader: 1 reviews	I bought one of those kits about 1.5 months ago. Its a great product. I ended up selling it due to military orders. Wish I could have kept it. Only issue you'll have is bore diameter. Stock is 3.552. Hopefully your block is still fairly new and you can still use your stock block __________________ 07 GT-- Gone But Not Forgotten Military Crew E-5

November 4th, 2009, 11:27 PM	#8
ethrjock Regular 2006 11.62@121 Join Date: May 2008 Location: Douglasville, Ga Posts: 68 iTrader: 0 reviews	block has 22k miles on it but you never know until you get into the guts of her. I'd hate to spend the cash only to find out my cylinder walls need bored. Hmmm... __________________ 06 Paxton HO, 60lb Inj, GT500 pump, 3.16 pulley, BMR LCA Panard Drop Bkt, FRPP spgs, Basssani exhaust, Off X, SLP LLck, 4.10 gear, Weld RT 15x10 rear, 4" ft-MT 28.1 x 12" rear (PB 11.62:1.51 60 ft on 11-21-09 at SDR) Paxton/Vortech Crew Member #4

November 5th, 2009, 09:18 AM	#9
DiMora More Is Better. 2006 Roush Stage 1 Blown Join Date: Mar 2009 Location: Acworth, GA Posts: 2,911 iTrader: 1 reviews	3.551" is the diameter on those pistons., and they are designed for a bore diameter on your block of 3.554" per the spec sheet on Ebay. Stock cylinder bore is 3.550 inches (90.2 MM), and stock piston diameters vary based on the "grade" used...and it looks like Ford uses 3 different "grade pistons" but the diameters are the following (all uncoated): Grade 1 3.5504-3.5499 in Grade 2 3.551-3.5503 in Grade 3 3.5515-3.551 in So, it looks like they allow for a cylinder "cleanup" of .003" to .004". I am NOT a machinist, but I know that normally when you bore an engine, it is one of the three over-bores: .010 .020 .030 What I am saying is it looks like those pitons are designed for "stock blocks" with no over-boring. They gain the 302 inch displacement through the piston design and the rods, and maybe the crank...in other words, the "stroke", but not the cylinder bore. Hope that helps. __________________ Roush Short shifter / Carmen's 3.47" TVS pulley Roush TVS Supercharger Steeda suspension /Big Brakes Mac L/T's / Prochamber / Roush Extremes KB BAP "Daily Driver" RWHP: 492@9 PSI w/ LT's "Dyno Queen": 512@12 PSI-stock exhaust Mods in Garage

November 5th, 2009, 01:27 PM	#10
stanglifemike IBEATU 06 GT, 98 GT, & 93 Notch Join Date: Dec 2006 Location: Douglasville, GA Posts: 5,937 iTrader: 0 reviews	Good info Shane!! __________________ 98 GT: some stuff 06 GT: more stuff 93 Notch: 4 cyl at birth, now 5.0 drivetrain and stock exterior and interior= True Sleeper Paxton/Vortech Crew Member #3 FRPP's #1 Dealer Injected Engineering BMR Suspension

November 16th, 2009, 09:33 PM	#11
ethrjock Regular 2006 11.62@121 Join Date: May 2008 Location: Douglasville, Ga Posts: 68 iTrader: 0 reviews	Thanks diMora. That's what I was looking for. It sounds like a risky purchase. I might be better suited with a kit that's designed for overboring .030. __________________ 06 Paxton HO, 60lb Inj, GT500 pump, 3.16 pulley, BMR LCA Panard Drop Bkt, FRPP spgs, Basssani exhaust, Off X, SLP LLck, 4.10 gear, Weld RT 15x10 rear, 4" ft-MT 28.1 x 12" rear (PB 11.62:1.51 60 ft on 11-21-09 at SDR) Paxton/Vortech Crew Member #4

November 17th, 2009, 05:51 PM	#15
jonnieguns Regular 2009 Mustang GT 13.5@105.88 Join Date: Oct 2009 Location: Eastern NC Posts: 486 iTrader: 0 reviews	I was about to buy it, lol. Sale ended on the 4th.

November 18th, 2009, 03:38 PM	#17
jonnieguns Regular 2009 Mustang GT 13.5@105.88 Join Date: Oct 2009 Location: Eastern NC Posts: 486 iTrader: 0 reviews	There's a similar high compression kit advertised as well. Would it be inadvisable to install that kit, and then swap in pistons with more of a dish (for lower compression) when it comes time to go forced induction? Would there be any problems with the new pistons not being set/matched to each cylinder?

November 18th, 2009, 04:00 PM	#19
jonnieguns Regular 2009 Mustang GT 13.5@105.88 Join Date: Oct 2009 Location: Eastern NC Posts: 486 iTrader: 0 reviews	Makes sense, thanks for the insight.

November 18th, 2009, 04:51 PM	#20
NastyFX4 Made in U.S.A. 2011 F150 FX4 Join Date: Jan 2009 Location: Florida Posts: 16,010 iTrader: 9 reviews	Just something to add to the conversation... If you're going to be running a 'normal' amount of boost like 8-13 lbs than there is ZERO issue with running a stock or slightly higher compression ratio. I believe our stock motors are 9.8:1. If you're planning on running a lot of boost than it's probably not a bad idea to get the lower compression pistons. __________________

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