[DeTomaso] Comments about engine build welcome

[astephens]

Christopher,
     I had Steve Wilkinson build me a similar engine.  I previously had a 
377 stroker with 4Vclosed chamber heads and the Comp Cams 32-541-8 hydraulic 
roller cam.  Steve built me a 408 stroker Cleveland with a Scat crank,  CHI 
3V heads and a matching CHI dual plane manifold so I could run the original 
engine screen.  I think the 377 made 385 HP to the rear wheels.  I crashed 
my car before I got the 408 to the dyno but it was faster!  I figured going 
up in cubic inches would drop my HP and torque peak rpms by 3-400 to around 
5400-5500,  which was fine by me.  I didn't want to rev the engine to the 
moon anyway.  The car was fun to drive with that engine.  I used the same 
cam in both engines.

Art



----- Original Message ----- 
From: "Christopher Kimball" <chrisvkimball at msn.com>
To: "Pantera List Serve" <detomaso at realbig.com>
Sent: Thursday, January 08, 2009 10:31 PM
Subject: [DeTomaso] Comments about engine build welcome


>
>
> Dear respective, respected forum members,
>
> I'm having a new
> engine built or my 1972 Pre-L and would like the forum's comments before I 
> begin the process.  I'm looking for a strong performing and reliable 
> street
> engine that will also be used 1 or 2 times a year at the
> track (at most).  I'd love to have 450 horsepower, too!
>
> To come up with a plan, I've been working with a very good friend and 
> fellow Pantera owner, as well as the gentleman who will be building the 
> engine.  We've come up with what we think will work well, but would 
> appreciate your input, too.
>
>
> My
> main questions are:
>
> 1)  Should I stay with the Edelbrock 2665 intake or
> would the 7564 RPM Air Gap be a better choice.  The builder thinks the Air 
> Gap may be too tall and might not fit under the engine cover (although I 
> have a cut-out already for a taller air cleaner) and that it may be more 
> appropriate for racing than street use.
>
>
> 2)  The cam is meant for 351 cu-in.  How should the
> cam specs be changed to better work with the 408 cu-in
> displacement?
>
> Here's the proposal so far:
>
>
> Block: Used 351C iron
> block
> Stroker Kit: Scat 9000 series 408 cu-in with cast crank,
> forged I-beam rods
> & forged dished
> pistons.
> Bore & Stroke: 4.030" x 4.00"
> Suggested RPM
> Limit: 6000
> Harmonic Dampener: SFI
> approved steel Pioneer
> 872027
> Timing Set:  Pro Gear true roller.
> Rings: Moly.
> Oil Pump:  Melling M-84A standard volume
> Oil Pump Driveshaft:  Hardened aftermarket
> version
> Oil Pan:  Armodos' 8qt
> with trap doors, crank scraper, windage baffle, clearance for 4"
> stroke
> Rockers: Comp Cam Pro Magnum Chrome
> Moly 1.7
> Heads:
> Edelbrock aluminum.
> Compression Ratio: 10:1
> Intake manifold:
> Edelbrock Performer 2665  Dual
> Plane
> Cam & Lifter
> Kit: Comp Cams retro-fit
> CL32-431-8 hydraulic roller
>
> Cam Specs: 224int,224exh at .050 | 110 LSA | .566" lift
> at 1.7:1
> Roller Lifter Link Kit: 31-1000 Spider and lifter wrench
> set
> Ignition: MSD Ready-to-Run.
> Headers:  Mind Train
> Exhaust: ? (I'd like to find a Mind Train exhaust system to match the 
> headers, but if that's not possible, what would be a good, alternate 
> choice?)
>
> Clutch: Centerforce.
>
> Thanks for any help you can offer!
>
> Sincerely,
>
> Chris
> #3846
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