408 W combo?

Jack's95gt · Jun 26, 2009

I have a 342 stroker with a SC trim Vortech. It dyno at 422 rwhp. I do a 12 even with that combo, not power shifting or high rpm launch. The block is a SVO Sportsman block with isn't much stronger than the OEM block.

I want to go faster, this no longer stills fast to me.

I started thinking about a 351 W based combo.
Here some items that a picked up in past few months.

Brand new 351 W roller block - stored for ten years
Victor jr. 60cc heads - new
Victor EFI intake
1.7 RR 7/16 stud Comp Cams - new
351 EFI billet distributor - new
Hawk 28oz SFI balancer - new
Cylotes timing chain and gears - new
BBK - 1 3/4" 351 swap long tube headers
Ford 351 swap oil pan - new

I haven't purcahsed a rotating assembly or a camshaft.
I'm thinking thay a N\A 408 would get me any faster than I'm now???
I drive 30 miles to the track and want to keep the car on pump gas and keep it streetable.

Questions - Would my SC trim Vortech blow enough for a 408?

Any suggestions that doesn't cost a fortune?

Cobra912 · Jun 26, 2009

well what's your current combo. Wouldn'ty it be easier to make some changes llike heads, cam etc. to bump up the power? That's seeing as you already have a potent powerplant already. And more power isn't always the answer. What about suspension, slicks/tires etc? No use in having more power when you can't get it to the ground.

Cobra_Dusten · Jun 26, 2009

i think he's worried about pushing the current engine much farther and splitting the block

Jack's95gt · Jun 26, 2009

With 422hp at the wheels and about 500 at the crank, I'm close to block breaking territory.
I have Lakewood 90/10 struts, 50/50 drag shocks, Lakewood traction bars - the ones that replace your lower control arms, welded sub frame connectors, upper and lower torque box reinforcements, UPR upper control arms, Poly upper rear mounts. 6 point roll bar and 275 MT's. I do 1.65 to 1.70 60' routinely.

Rookie71 · Jun 27, 2009

I think doing switching to a 408 that would meet your needs is going to cost more than just upgrading your block.

MadDAWG · Jun 30, 2009

I agree. Since you all ready have them get a good block and put those Victor Jrs on the 347.

A 351 roller block while better than the late model 302 isn't all that great either.

Just for referance. My buddy has a carbed 408 with Victor Jrs and a mechanical cam and it runs 11.50s @ 120+ mph. That's babying it out of the hole becuase he is still running a T5 lol.

joel5.0 · Jul 1, 2009

422 HP at the wheels, and it only runs 12's?.......... with a 342 stroker?

Cobra_Dusten · Jul 1, 2009

with only 3.55's, and only cutting 1.6x's a 12.0 with his power is what i'd expect. if he power shifted, and cut into the low 1.5x's he'd be running 11.6 or better

90lxcoupe · Jul 1, 2009

Might as well push that sportsman block and see what it can handle... there are plenty of guys running around that power level that have no problems on a stock block. plus the sportsman is still stronger. mabye not but much, but 600 horse shouldnt be a prblem from that block.

Putting a new motor is not going to make the car faster, do chassis work, and have the car scaled and professionally set up, with that power, with over 400 at the tires there is no reason you shouldnt be running mid to high 10's if the car was set up right.

Im making 390 at the wheels and i ran an 11.30 with a 1.6x 60 foot,granny shifting at 6k. dont get hung up on the RWHP numbers, thats only part of going fast.

TenorPlayinGuy · Jul 1, 2009

not to mention the 351 is heavier for your drag racing.

tb9050lx · Jul 2, 2009

Jack's95gt said:
I have a 342 stroker with a SC trim Vortech. It dyno at 422 rwhp. I do a 12 even with that combo, not power shifting or high rpm launch. The block is a SVO Sportsman block with isn't much stronger than the OEM block.

I want to go faster, this no longer stills fast to me.

I started thinking about a 351 W based combo.
Here some items that a picked up in past few months.

Brand new 351 W roller block - stored for ten years
Victor jr. 60cc heads - new
Victor EFI intake
1.7 RR 7/16 stud Comp Cams - new
351 EFI billet distributor - new
Hawk 28oz SFI balancer - new
Cylotes timing chain and gears - new
BBK - 1 3/4" 351 swap long tube headers
Ford 351 swap oil pan - new

I haven't purcahsed a rotating assembly or a camshaft.
I'm thinking thay a N\A 408 would get me any faster than I'm now???
I drive 30 miles to the track and want to keep the car on pump gas and keep it streetable.

Questions - Would my SC trim Vortech blow enough for a 408?

Any suggestions that doesn't cost a fortune?

go 427 and slap your vortech on it !

Jack's95gt · Jul 2, 2009

The vic jr's and Victor 5.0 intake will go on the 342 for te balancer of the year and the 408 will be built off season. I agree that I should run lower ET's with my present setup. My top trap was 118 mph.

84Ttop · Jul 2, 2009

Cobra_Dusten said:
i think he's worried about pushing the current engine much farther and splitting the block

12 oh's with a stock block is no big deal! We have a junk yard 89 gt shortblock, w/ new bearings, e cam, performer rpm heads and a novi 2000 w/ renagade pulley going 10.30's w/ 1.40 60 ft times. off the trailer. When the car is driven to the track it would go 10.50 - 10.52 every time. That car made a little over 500 at the wheels and the short block has been in the car for over a year now.

84Ttop · Jul 2, 2009

P.S. a 393 stroker doesn't have any cylinder wall clearance issues. Just a thought.

Cobra912 · Aug 30, 2009

84t-top said:
12 oh's with a stock block is no big deal! We have a junk yard 89 gt shortblock, w/ new bearings, e cam, performer rpm heads and a novi 2000 w/ renagade pulley going 10.30's w/ 1.40 60 ft times. off the trailer. When the car is driven to the track it would go 10.50 - 10.52 every time. That car made a little over 500 at the wheels and the short block has been in the car for over a year now.

just thought I would add. I had my car dynoed last Saturday - 448 at the wheels. I run a 11.5's on stock suspension and a crappy T-5. Keep the set-up!

LarsD · Aug 30, 2009

Cobra912 said:
just thought I would add. I had my car dynoed last Saturday - 448 at the wheels. I run a 11.5's on stock suspension and a crappy T-5. Keep the set-up!

Stock block?

Cobra912 · Aug 30, 2009

yep and after I get it tuned for the meth and she hits 500 - I have a main stud girdle to keep it all inside the block when she blows

LarsD · Aug 30, 2009

Cobra912 said:
yep and after I get it tuned for the meth and she hits 500 - I have a main stud girdle to keep it all inside the block when she blows

lol awesome!

408 W combo?

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They make new pistons every day, so why worry?

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