Daryl’s Build Thread

Daryl

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I’m not sure how to go about this, especially since I’ve had the car and been working on it for, I dunno, 6 years +/-.
When I bought it, I became the 3rd owner. Original owner was a retired Air Force Lt. Commander. 2nd guy was a soda vending machine owner too busy to drive it. Garage kept. It had an antiquated PowerDyne (?) 6lb SC and a very tired block according to the engine rebuilder I eventually took it to. SC generated so much heat it basically killed whatever hp it was generating, so that’s why I opted to stroke the motor via a Scat 347 rotating assembly, 303 cam, AFR 165 heads and Ccel 24lb injectors. Then of course had it dyno’d and tuned.

I thought it best to upgrade the undercarriage and suspension next. So, had a set of full-length subframe connectors (bolt-in that were later welded in), MM front & rear suspension including caster/camber plates, rear strut bar, Bilstein B6 shocks all around, front & rear sway bars, torque arm, Panhard bar and adjustable Sport series LCA’s.
Went through 2 sets of tires/wheels from LMR: offsets with 315 rears and then same size x4. Stuck with the latter (275’s).
Broke one transmission, so upgraded to the Tremec TKX; have replaced the fuel tank, cover, sending unit, filter, etc. ; cosmetically had the front bumper resprayed, added an air dam and deflector; different rear spoiler; headlights, upgraded bulbs all around.

Other mechanical includes: new radiator; hoses; belts, pulley,alternator; starter; water pump/water neck/thermostat.

Then there’s the interior: ditched the power drivers seat for a Sparco GT both sides with seat extensions; rear seat delete; double din head unit, Kicker speakers; new steering column; added water temp and oil temp gauges in new gauge pod; and new driver side window motor; short throw shifter with Hurst white cue ball style knob.

Also did a Flow Master cat-back exhaust system with Series 45 mufflers for just a bit of rumble :)

I’m sure there’s more tid bits here and there that I don’t recall off the top of my head right now, but I think that’s a pretty good start. So there ya go!!
 

95opal

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Read some of your other posts on your concerns and i have to ask. What CC heads 58? 11:1 comp? If your gas milage is that low its because your engine isnt as efficient as it should be. Theoretically a more effecient engine will have better gas milage. I dont know the specs of your set up but from your posts i assume you have some serious bottleneck somewhere in your set up.
 

95opal

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With the longer rods the dwell time throws off timing events when using a 302 cam. Better choice would be a cam designed for a stroker.
 

96blak54

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Strokers generally have to use a shorter rod unless the deck height grew. And you are correct about long rods dwell time at tdc and bdc. Have you ever mathed out a modular 5.4l piston dwell? Its crazy long. I forgot the amount of crank angle the piston dwells at top and bottom but its crazy long compared to most normal engines. Remember, exhaust blasts out soon as the valve peeps off the seat. Typically around 55degree BBDC. Blowdown/cylinder decompression begins and as the cylinder is depressurizing, the piston begins to dwell.
.....I got idea, lets open the exhaust valve at piston dwell!...wink wink.
 

95opal

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Strokers generally have to use a shorter rod unless the deck height grew. And you are correct about long rods dwell time at tdc and bdc. Have you ever mathed out a modular 5.4l piston dwell? Its crazy long. I forgot the amount of crank angle the piston dwells at top and bottom but its crazy long compared to most normal engines. Remember, exhaust blasts out soon as the valve peeps off the seat. Typically around 55degree BBDC. Blowdown/cylinder decompression begins and as the cylinder is depressurizing, the piston begins to dwell.
.....I got idea, lets open the exhaust valve at piston dwell!...wink wink.
shorter pistons are used for a stroker rod length is longer. Hence a stroker piston is more prone to crack. My 331 is technically a 5.4
347 = 4.030" bore 3.400" stroke 5.400"/5.325"/5.315" rod length 1.588:1/1.566:1/1.563:1 RAR
331 = 4.030" bore 3.250" stroke 5.400"/5.325"/5.315" rod length 1.662:1/1.638:1/1.636:1 RAR
302 = 4.000" bore 3.000" stroke 5.090" rod length 1.697:1
 

96blak54

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Ah yes. A stock 302 compression height piston is 1.605 and a stroker piston compression height is 1.090. Throw in crank stroke differences and the math, maths out to an extra .100" longer rod. Not alot of added length but for sure longer. I always thought the 302 strokers retained stock rod lengths.
My all time dream windsor dream build is to 289crank a 351 block. That would require a special made crank cause the main of the 351 are larger than the 289 mains, however I recall special adapters for the 351block mains to run 289/302 cranks. And then there is world products tall deck 302w made blocks, but who has $3k for a block. A 351 with a 289 crank would make for a screamer
 

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