I lucked out today and found a '28 Chev head cheap at a swap, onlookers said that the only reason it was available was it would be cracked.
I scraped the face down carefully and can see no evidence of cracking, the next will be a dye test, where am I expecting to find damage?
Please can someone provide the email or other contact for Neal Jern of Redding CA ,and tell me if this conversion with a standard cam would approximate the gain obtained with a Z head and multilifters ?
What would I be paying for the Jern Thunderbolt kit? ( Captain Thunderbolt was an infamous bushranger or bandido in my ancestors' highlands area of New South Wales in the 1800s, he held up my great grandfather on horseback one day , who slipped his gold fob watch down his britches into his longboots - we still have the watch, his fortune ...alas NO. )
Victor,
Previously Stan Cummings at: http://www.mtfca.com/discus/messages/29/9886.html shared the address below for Neal Jern shown below. It is to Neal’s site showing the same head installed on a Model A block but it is still the same person.
http://www.obrasmechanicos.com/ohvmodela.htm
NEAL JERN CUSTOM MACHINE
6303 MULLEN PARKWAY
REDDING, CA. 96001
(530) 244-0277
(530) 244-0277 FAX
nkjern@sbcglobal.net
See the following threads for related 28 Chevy head installation items:
http://www.mtfca.com/discus/messages/29/25434.html
http://www.mtfca.com/discus/messages/29/5331.html
Done correctly the conversion will have plenty of power for a T (no you won’t be able to pull 10,000 pound trailers) and yes probably more than Z head with the stripe cam. However, the Z head with the stripe cam is also a great choice for many folks who are looking for a good touring engine in their car. It is less complicated and with the lower compression probably easier on the crankshaft, bearings, etc.
For engines in general, one of the likely places for them to develop cracks is in or around the exhaust valves. One of the hottest places on the engine. I don’t know if the 28 Chevy heads had another area that was more prone to cracks – but I’m sure some of the speedster folks will know. Speaking of which – recommend you post your question on the North West Speedster Site at: http://www.nwvs.org/ click on their tech section and/or forum.
Respectfully submitted,
Hap Tucker 1915 Model T Ford touring cut off and made into a pickup truck and 1907 Model S Runabout. Sumter, SC
See photos of the adapter plate and a complete engine here:
http://www.gen3antiqueauto.com/PoorMansRajo.html