LS7 Conversion?

[LuckyP]

Not good news from Charles Dunn when he stripped my 'tired' engine. Looks terminal.

I had hoped that I could have a spectacular track failure, but it looks like it just whimpered off into a corner and died.

I'm going LS7. Has anyone done the conversion yet?

Soup to nuts, what is the cost all in. Did we say around £25K??

Spose I'd better go 650 bhp while I'm at it.

Lucky

[LuckyP]

200mph. Hmmm. And there I was having decided to go back to the old G50 03 ratios after the awful 4th and 5th gear swap experiment.

Well I spose a full set of perfectly matched G50 ratios could be on the cards if it doesn't compromise that track performance.......But I guess it will.

What can these here LS7s rev to......erm...'safely'?

[LuckyP]

You are a naught man Guy, putting these thoughts in my head.

Surely the SBC is heavier, higher and further back - three things you don't want in a Porsche chassis??

[LuckyP]

Been doing a bit of thinking and I'm not so sure that £25K is sensible for what I do with the thing. I'm investigating a few avenues.....all of which are dry sumped!!

Going to Charles Dunns gaff on Saturday morning to take a few pics of the carnage(which includes a cracked main bearing cap for starters!!)

Thanks for all the e-mailed and posted advice chaps.

Lucky

[LuckyP]

Ok, so I bottled it. A/S were given the brief of a track motor rather than the std road engine and are sending Charles Dunn the following:

Dry sump kit which includes belt, #12 line fittings, 10 ft. of #12 braided hose, oil inlet filter adapter, pump, sump, PM alternator, pulleys, bracket and adapters, in line oil filters $2234.00
Steel main caps and studs, shipping $294.25
Oil pump block off $16.00
Gaskets $196.00
Comp poly dist. gear for roller cam $128.00
Teflon coated main bearings $135.00
Teflon coated rod bearings $135.00
Teflon coated cam bearings $56.00
Rod bolts $96.00/set
Chamfer rod bearings $30.00
Steel roller cam-custom grind $325.00
Roller lifters $302.00
Comp roller rockers $306.00
Girdle $205.00
Cloyes steel roller timing set $160.00
Pistons $604.00
Head stud kit $250.00
Oil gallery plugs $5.00
Valves $482.00
Keepers $26.00
Titanium retainers $275.00

We can rebuild her.........

Going for the Holley HP Carb and Factory dry sump kit.

If (when) this goes pop. I'll fink LS7 again.

Lucky

[LuckyP]

bluesatin said:

You know it makes sense! Any idea on power gains for this lot. I know the carb gives 10bhp due better breathing and cam maybe 20 bhp- anything else in the package!

All looks like a great package and look forward to the dry sump and see how it goes.

If we`see 50hp then that'll be good for me. Charles is gonna open up the header plates too as each one overlaps the head port by 3mm

Edited by LuckyP on Wednesday 23 January 05:53