351 stroked to 408 + a Vortech S-trim@14# boost, good or bad?

bigwhitecobra · 01-27-2001, 11:52 PM

Ok, here's the deal, I am thinking about starting another project car, and I have the budget for a 408 stroker, and I already have the Vortech. Keep in mind that as soon as this car gets done, it will see the road on a weekly, if not daily basis. Is this too much for the street? And which heads and cam should I go with? I plan on using a Fox based notch, with 3.55's or 3.27's. Subframes are a must, as is a T-56. The rest is kinda open for debate. I was thinking about TFS, Edelbrock, or AFR heads. Cam wise, I am lost. I have no clue which direction I want to go in. I do want to be in the 10-9 sec. range on the strip with DR's. I hope this is enough info to get some of you thinking. Thanks in advance!!

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1989 GT- Vortech blown 306, Anderson 3" power pipe, Vortech S-Trim 14# boost, MSD-6BTM, black wrinkle finish Cobra valve covers(woohoo), world class T-5, 3.55 gears, custom sub-frame connectors, Cobra grille insert and rear valance, Saleen "whale" wing, 4 wheel disc conversion, est 1/4mile time of 10.5+/-
1994 Cobra- MAC cold air fender kit, Motorsport underdrive pulley's, MAC 21/2" off-road H pipe, SVO mufflers, 3.73 gears, E-303 cam, 13.417@101.335mph

jonnyk · 01-28-2001, 12:18 AM

I would think this would be serious overkill for the street, but it'd sure as heck be fun

For heads I'd personally go with Canfields or Edelbrock Victor Jr's, maybe with a mild port job to clean them up. Intake, TFS makes a nice 351 EFI setup that should work. As for a cam, contact someone like Anderson Ford, they do good research in cams (especially blower cams). Long tube headers (like 1 3/4") along with 3" exhaust, and a big fuel system would probably also be involved.

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1991 LX Hatch 5.0L

NoSlow5.0 · 01-28-2001, 09:21 AM

It is only too much for the street if it drives to harsh for you and/ or it is just plane dangerous. I'd go with AFR 185's for heads and a boxed upper since you will have a lot of cubes and a blower. Cam wise, put it all together then figure out what your driving habits with the new motor will be, how much you plan on running the 1320 w/ it, etc... And then have a cam custom ground for it. It sure sounds like a fun idea to me

Light Em Up!!

84_GT350 · 01-28-2001, 07:09 PM

Good or bad...is that even much of a question? Of course it's good (the correct term is hard @SS). As for the cam, more inches will mean the car will be much more tolerant of camming. Don't be afraid to run a big cam...it won't run bad on the street like big cams do in smaller engines.

------------------
1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

novi408 · 02-02-2001, 11:16 AM

I say go for it. I have a 408 with a Paxton Novi 2000 running about 15# of boost. I have a Tremec TKO and 3.73 gears. I would recommend using 3.27s or 3.55. 1st gear is almost useless on the street with the 3.73s. Sure is a lot of fun though.

------------------
1988 LX Coupe, 6 pt roll bar, 408 Stroker w/ Sportsman block, TFS-R heads, GT-40 lower, sheet metal upper, Tremec TKO, Paxton Novi 2000, Paxton fuel system, EPEC, Front Coil-Overs, Tubular K-Member

01-27-2001, 11:52 PM	#1
bigwhitecobra Huh? Whatcha said? Join Date: Oct 2000 Location: Fayetteville, NC Posts: 1,073	351 stroked to 408 + a Vortech S-trim@14# boost, good or bad? Ok, here's the deal, I am thinking about starting another project car, and I have the budget for a 408 stroker, and I already have the Vortech. Keep in mind that as soon as this car gets done, it will see the road on a weekly, if not daily basis. Is this too much for the street? And which heads and cam should I go with? I plan on using a Fox based notch, with 3.55's or 3.27's. Subframes are a must, as is a T-56. The rest is kinda open for debate. I was thinking about TFS, Edelbrock, or AFR heads. Cam wise, I am lost. I have no clue which direction I want to go in. I do want to be in the 10-9 sec. range on the strip with DR's. I hope this is enough info to get some of you thinking. Thanks in advance!! ------------------ 1989 GT- Vortech blown 306, Anderson 3" power pipe, Vortech S-Trim 14# boost, MSD-6BTM, black wrinkle finish Cobra valve covers(woohoo), world class T-5, 3.55 gears, custom sub-frame connectors, Cobra grille insert and rear valance, Saleen "whale" wing, 4 wheel disc conversion, est 1/4mile time of 10.5+/- 1994 Cobra- MAC cold air fender kit, Motorsport underdrive pulley's, MAC 21/2" off-road H pipe, SVO mufflers, 3.73 gears, E-303 cam, 13.417@101.335mph

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01-28-2001, 12:18 AM	#2
jonnyk Being stroked is great Join Date: Oct 1998 Location: Alberta, Canada Posts: 772	I would think this would be serious overkill for the street, but it'd sure as heck be fun For heads I'd personally go with Canfields or Edelbrock Victor Jr's, maybe with a mild port job to clean them up. Intake, TFS makes a nice 351 EFI setup that should work. As for a cam, contact someone like Anderson Ford, they do good research in cams (especially blower cams). Long tube headers (like 1 3/4") along with 3" exhaust, and a big fuel system would probably also be involved. ------------------ 1991 LX Hatch 5.0L

01-28-2001, 09:21 AM	#3
NoSlow5.0 YOU HAVE NO MARBLES!!!!!! Join Date: Aug 2000 Location: Jonesboro,Georgia,USA (Providence, Ri) Posts: 868	It is only too much for the street if it drives to harsh for you and/ or it is just plane dangerous. I'd go with AFR 185's for heads and a boxed upper since you will have a lot of cubes and a blower. Cam wise, put it all together then figure out what your driving habits with the new motor will be, how much you plan on running the 1320 w/ it, etc... And then have a cam custom ground for it. It sure sounds like a fun idea to me Light Em Up!!

01-28-2001, 07:09 PM	#4
84_GT350 Registered Member Join Date: Apr 1999 Location: Overland Park, KS, USA Posts: 1,631	Good or bad...is that even much of a question? Of course it's good (the correct term is hard @SS). As for the cam, more inches will mean the car will be much more tolerant of camming. Don't be afraid to run a big cam...it won't run bad on the street like big cams do in smaller engines. ------------------ 1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

02-02-2001, 11:16 AM	#5
novi408 Registered Member Join Date: Jun 2000 Location: Redford, MI Posts: 30	I say go for it. I have a 408 with a Paxton Novi 2000 running about 15# of boost. I have a Tremec TKO and 3.73 gears. I would recommend using 3.27s or 3.55. 1st gear is almost useless on the street with the 3.73s. Sure is a lot of fun though. ------------------ 1988 LX Coupe, 6 pt roll bar, 408 Stroker w/ Sportsman block, TFS-R heads, GT-40 lower, sheet metal upper, Tremec TKO, Paxton Novi 2000, Paxton fuel system, EPEC, Front Coil-Overs, Tubular K-Member