andrew_v

Ok. Ive had this near complete 355 efi combo for a while. Ive been stuffed around by a d***head engine builder previously who I pulled the pin on, but Id like to finish this off now properly this time. This is what I have so far and where im up to:

*Vn virgin block clearanced for 355 crank, no other machining done yet, ARP main studs
*Scat 355 crank
*king bearings
*Scat I beam rods, arp bolts
*Speed Pro 30 thou hypertecs, cant remember brand of rings, 9.5:1
*crow hyd cam part no 4503(out of stage 3 cam memcal & spring package) adv inlet dur : 290, adv exh : 282, valve timing -inlet : 33/77 exh: 75/27. At .050" duration -inlet: 227, exh: 220. lobe separation: 113, Valve lift -Inlet: .4867" Exh: .4867"
*VN cast heads complete with standard size stainless valves, 3 angle seat, hardened springs & retainers that came with cam package. They are supposedly ported to suit this cam, but I better double check with someone in Perth who knows! Also, 7/16 shaft mount y/t rollers -non adjustable, hardened rods and guides to suit.
*JP h/v pump and high energy sump,
*yella terra billet flywheel, powerbond std balancer

I still need to choose a manifold. I really like and was always planning on the Come ttb, but this decision is not set in concrete. I also need to chose what computer to run it on, injectors, fuel pump etc. I know Im up for a bore and hone, line hone to fit the arp mains, balance rotating assembly etc so I also need to find a GOOD REPUTABLE engine shop in Perth.

All of this is going into a street VR ute infront of a T5 -I know it will probably break but Ill deal with it if and when it hapens , 3.45's in a b/w diff, and it has paceys & twin 2.5" cats into single 3".

I am after opinions and suggestions on this combo and what manifold and ecm I should go for. Id also really like to hear reasons for why you recommend what you do. While I know people will dissagree with the combo I have so far, I would rather use what I have if possible but I will change things around if its for the best. Cheers and looking forward to your input.

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MCEcomp

Is this a N/A or boosted engine???

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3370lb HG prem 10.013@134
358 chev N/A flat tappet cast heads

andrew_v

N/A. I briefly looked into boosting the current engine in my ute but decided its better and cheaper for me to finish what I already have.

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MCEcomp

That cam is a pile of shit... a good ol crane 286 will romp it

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3370lb HG prem 10.013@134
358 chev N/A flat tappet cast heads

andrew_v

MCEcomp, can you please say why my cam is a pile of shit and why a 286 will romp it? By no means am I disagreeing with you but rather I want to learn so I can make more educated and correct decisions in future.

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MCEcomp

Cos it has less exhaust timing than the inlet and its on a wide lobe centre.

You should reaLLY pick the intake man. before the cam

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3370lb HG prem 10.013@134
358 chev N/A flat tappet cast heads

GTR308

i would look at the T/P high rise dual plane and 1000cfm throttle body. and a custom hyd cam somewhere around these specs:
adv dur: 278in, 280ex
050 dur: 228in, 232ex
lift @ valve: 520in, 530ex
lobe sep: 109 deg
intake c/l 107 deg
the last combo i built using this type cam with almost the same combo as yours with cleaned up vn heads and 10.2.1 comp, made 302.6 RWHP @4000 rpm and peaked 332.7 RWHP @ 6000. it had super mid range power and torque. it had trimatic auto, really nice to drive on the street

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308 performance centre, perth

Jimma

Why that over the Harrop? I hear the Harrop is better.

Crunchy_NuT

have a look at the other thread called 'manifold pics' of allports and see why the harrop is better....if i was in this position i'd be going the harrop IMO after seeing that thread

BossHoggett

Your cam is for a Turbocharger.

allports

The only man that picked it up. Good one. At least he's got the 1st part of his boosted set up. I have used on many occaisions less Ex timing in certain applications with great success, although the LCA like MCE comp pointed out will be the down fall there.

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If you plant a cucumber, you get a cucumber!
Two things are infinate,the universe & human stupidity, and Im not sure about the universe.
Albert Einstein
Without deviation from the norm, progress is not possible. Frank Zappa

moot

the harrop isnt better.it wasnt in our back to back dyno tests.infact there is a fair difference....

GTR308

i said T/P high rise dual plane not the single plane, whan talking single planes then as allports has pointed out the harrop is better.

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308 performance centre, perth

ONN20

Harrop doesn't make a high rise dual plane, that's why

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allports

I ve read this before where you dyno'd the two. I wonder what was wrong with your induction system, obviously not set up meaning induction system wasnt properly tuned.

__________________
If you plant a cucumber, you get a cucumber!
Two things are infinate,the universe & human stupidity, and Im not sure about the universe.
Albert Einstein
Without deviation from the norm, progress is not possible. Frank Zappa