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Search: Posts Made By: roscobbc
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Forum: C3 Tech/Performance
04-19-2024, 11:06 AM
Replies: 7
Views: 236
Posted By roscobbc

I use the same polish on the ceramic headers as I...

I use the same polish on the ceramic headers as I do for my mirror finished alloy wheels and stainless steel exhaust system.......works well!
Forum: C3 Tech/Performance
04-17-2024, 06:41 PM
Replies: 18
Views: 473
Posted By roscobbc

I did the 18" wheel thing about 15 years ago and...

I did the 18" wheel thing about 15 years ago and without changing any suspension components seeminglu overnight it transformed the cars cornering ability, stability and to a degree its braking too....
Forum: C3 Tech/Performance
04-15-2024, 08:12 PM
Replies: 14
Views: 348
Posted By roscobbc

So who removes transmission complete with...

So who removes transmission complete with bellhousing off engine block.........or leave bellhousing in place and just remove gearbox?
Forum: C3 Tech/Performance
04-11-2024, 01:10 AM
Replies: 5
Views: 302
Posted By roscobbc

My 489 cu in makes 570hp/606ft/lb tq at the...

My 489 cu in makes 570hp/606ft/lb tq at the flywheel. Initially I used the same Hedman headers that I had installed years earlier with the stock L36 427 engine. They were fine, worked well (or so I...
Forum: C3 Tech/Performance
04-06-2024, 05:12 PM
Replies: 16
Views: 364
Posted By roscobbc

With a manual transmission, power steering (but...

With a manual transmission, power steering (but tiny steering wheel) I find the 'weighting' of steering, clutch, gearshift and braking is all resonably balanced - (IMHO nothing worse that an overly...
Forum: C3 Tech/Performance
04-05-2024, 06:47 AM
Replies: 34
Views: 849
Posted By roscobbc

I've a set of those too - have used other...

I've a set of those too - have used other brands/types before including solid copper (annealed before re-using) and the Percy's multi-layer alluminium gaskets have been the best and lasted the...
Forum: C3 Tech/Performance
04-04-2024, 07:01 AM
Replies: 7
Views: 241
Posted By roscobbc

Good thinking.......'er......"Batman" ?!

Good thinking.......'er......"Batman" ?!
Forum: C3 Tech/Performance
04-01-2024, 03:05 PM
Replies: 41
Views: 908
Posted By roscobbc

No real issue re. clearance to spring - I wanted...

No real issue re. clearance to spring - I wanted to keep the front and rear 'track' dimensions (based on measurements on centreline of rims) and the same as stock '69 onwards Vettes, (irrespective of...
Forum: C3 Tech/Performance
03-31-2024, 09:14 AM
Replies: 12
Views: 492
Posted By roscobbc

Can't image too many fresh buyers of new L88's...

Can't image too many fresh buyers of new L88's back 'in the day' not taking a detour to the exhaust shop on the way back from the Chevy dealers and more appropriate headers and exhausts being fitted!
Forum: C3 Tech/Performance
03-30-2024, 08:37 AM
Replies: 12
Views: 492
Posted By roscobbc

Could be wrong - but (on my 427 '68 anyway) the...

Could be wrong - but (on my 427 '68 anyway) the OEM exhaust was 2 1/2"........however I seem to recall 'in' side of mufflers were 2 1/2" - 'out' side were smaller, perhaps 2 1/4". Chrome exhaust...
Forum: C3 Tech/Performance
03-29-2024, 01:03 PM
Replies: 41
Views: 908
Posted By roscobbc

I have 9 x 18" (5" back space) with 285/40/18...

I have 9 x 18" (5" back space) with 285/40/18 rubber on rear of my '68. Had to relocate parking brake cable. Stock trailing arms. Measurement between inner tyre wall and frame is approx. 3/8"...
Forum: C3 Tech/Performance
03-28-2024, 07:54 AM
Replies: 16
Views: 644
Posted By roscobbc

I'm guessing that most reading this thread will...

I'm guessing that most reading this thread will be changing their oil annually anyway.......the higher mileage and perhaps daily all season drivers may want to consider alternatives.....or simply...
Forum: C3 Tech/Performance
03-24-2024, 07:14 AM
Replies: 115
Views: 3,709
Posted By roscobbc

And with that kind of policy can you imagine the...

And with that kind of policy can you imagine the costs involved if I was order something here in the UK from one of these USA based suppliers? - in fact some of the larger parts houses that ship in...
Forum: C3 Tech/Performance
03-23-2024, 03:26 PM
Replies: 115
Views: 3,709
Posted By roscobbc

Perhaps more worrying is the current lack of the...

Perhaps more worrying is the current lack of the larger tube diameters irrespective of brand for BB Vette's - it seems the only large tube headers now are made by Dougs.......and they are...
Forum: C3 Tech/Performance
03-23-2024, 03:20 PM
Replies: 16
Views: 644
Posted By roscobbc

I'm with my Vette buddy John re. the Valvoline!

I'm with my Vette buddy John re. the Valvoline!
Forum: C3 Tech/Performance
03-18-2024, 12:26 PM
Replies: 13
Views: 292
Posted By roscobbc

Can't speak for small block application - mines a...

Can't speak for small block application - mines a big block......but following a major engine re-build where a 'aftermarket dipstick and tube' had been installed I fitted a Lokar 'flexible' dip stick...
Forum: C3 Tech/Performance
03-13-2024, 04:21 AM
Replies: 37
Views: 1,206
Posted By roscobbc

Seems that over the years header options for rear...

Seems that over the years header options for rear exiting BB powered Vettes are certainly disappearing.......definately the larger tube sizes. I've had (about 20 years ago) Hedman 1 7/8" that fitted...
Forum: C3 Tech/Performance
03-09-2024, 03:07 AM
Replies: 15
Views: 363
Posted By roscobbc

If the headers are mild steel, then yes there is...

If the headers are mild steel, then yes there is a risk presumably of the 'wrap' material absorbing moisture when cooling down in your garage and/or if the garage is cold/damp and rusting the...
Forum: C3 Tech/Performance
02-29-2024, 10:49 AM
Replies: 44
Views: 1,395
Posted By roscobbc

Perhaps Hotrod427 Jim can advise - seen to recall...

Perhaps Hotrod427 Jim can advise - seen to recall from conversations years ago that he used 'off the shelf' underfloor headers (can't recall which brand, perhaps Supercomp 2 1/8"?) but his cylinder...
Forum: C3 Tech/Performance
02-29-2024, 07:03 AM
Replies: 115
Views: 3,709
Posted By roscobbc

OldCarBum - that spec' is remarkably similar to...

OldCarBum - that spec' is remarkably similar to mine - except for my 234/240 Howards non-roller hydraulic cam and a little less lift with 570/606 hp/tq
Forum: C3 Tech/Performance
02-28-2024, 11:00 AM
Replies: 24
Views: 899
Posted By roscobbc

I had a set of Koni 'Classics' on the shelf for...

I had a set of Koni 'Classics' on the shelf for years. My BB '68 'supposedly' has the F41 suspension option - so front/rear spring combo......but damping was getting a little 'soggy' so I removed the...
Forum: C3 Tech/Performance
02-28-2024, 04:18 AM
Replies: 115
Views: 3,709
Posted By roscobbc

Certainly look nicely engineered - and primary...

Certainly look nicely engineered - and primary ID's are what diameter?
Forum: C3 Tech/Performance
02-24-2024, 07:20 PM
Replies: 22
Views: 784
Posted By roscobbc

As Jim says! - blue smoke is always burning oil -...

As Jim says! - blue smoke is always burning oil - black smoke is indicative of an overly rich mixture/fueling related problem (whether a sticky/badly adjusted choke or leaky gasket/float or other...
Forum: C3 Tech/Performance
02-23-2024, 11:54 AM
Replies: 115
Views: 3,709
Posted By roscobbc

I have the 2 1/8" on my BB '68 - no future chance...

I have the 2 1/8" on my BB '68 - no future chance of using lowered springs - ground clearance is about 2" - had the collector flanges removed and used 'slip rings' instead. Running tail pipes thru'...
Forum: C3 Tech/Performance
02-22-2024, 06:33 PM
Replies: 115
Views: 3,709
Posted By roscobbc

Agree - but looking from the header manufacturers...

Agree - but looking from the header manufacturers perspective.......they can't be held responsible for all of the aftermarket cylinder head variables if a head manufacturer has a machining tolerance...
Showing results 1 to 25 of 495
 
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